Sign up and be the first to receive information on new products, events and exclusive offers from Casio Education!        


Submit a Question




Search FAQs:

  1. My FX115ES or FX300ES gives a fraction as an answer. How do I switch to decimal?
    Turn on the calculator, then press [SHIFT] [SET UP]. This should display a menu on your screen with several options. The first two are what we are interested in. Number 1 is MthIO, and number 2 is LineIO. The default for the calculator is MthIO.
    While it is using MthIO, if you do a calculation that results in a fraction, the answer will be displayed as a fraction. Try [3] [] [4] [=] and you will get the fraction 3/4 as an answer. If you press the [S<->D] key, then the result will be converted to decimal form (0.75).
    Still in MthIO, if you press [SHIFT] before [=] then you should get a decimal answer immediately. Press [3] [] [4] [SHIFT] [=] and the answer is 0.75.
    If you would rather not press [SHIFT] before [=] every time you do a calculation (or use the [S<->D] key to convert the answer), then switch to LineIO format. When you do this, the answer should immediately appear as a decimal when you press the [=] key.
  2. Why do I get the wrong answer when doing a percent calculation?
    Make sure that you are following the correct procedure.
    Adding 10%: 200 [] 10 [%] [+]
    Subtract 10%: 200 [] 10 [%] [-]
  3. How do I connect my FX9860 to the computer?
    This calculator includes a USB cable and the FA-124 software.
    You can download it at the following link:
  4. What do the letters V.P.A.M. stand for?
    V.P.A.M. stands for "Visually Perfect Algebraic Method."
    It is a system that makes it possible for the calculator to display expressions and for you to input expressions the way they are written on paper. With a model not equipped with V.P.A.M., for example, you would input the expression sin 90?using the key operation: [9] [0] [sin] [=]. With a V.P.A.M. calculator, you would input [sin] [9] [0] [=].
  5. Why do I get incorrect answers with problems involving mixed fractions on FX115ES/FX300ES?
    Be sure that you are entering the mixed fraction properly.
    Generally, when entering fractions, you'll want to use the fraction key which is located underneath the [CALC] key and above the [(-)] key. Pressing this key allows you to enter a numerator and then a denominator.
    For mixed fractions, enter [SHIFT] followed by the fraction key. You can then enter three parts: the integer portion, then the numerator of the fraction, then the denominator of the fraction.
    One mistake that some people may make is to press the fraction key (without pressing [SHIFT]), then cursor left to enter the integer, then cursor right to enter the numerator and denominator. What happens is that is treated as the integer multiplied by the fraction, rather than the integer added to the fraction.
    For example, a user may enter 1 1/2 as:
    [Fraction] [cursor left] [1] [cursor right] [1] [cursor down] [2] [cursor right]
    This is incorrect, and is treated as "1 1/2" giving a result of 1/2.
    The correct way to enter 1 1/2 is:
    [SHIFT] [Fraction] [1] [cursor right] [1] [cursor down] [2] [cursor right]
    For more information see page E-21 of the FX-115ES manual, or page E-20 of the FX-300ES manual.
  6. How do you take the 5th root of a number (or any root higher than 3)?
    FX-9750/CFX-9850/FX-9860 series
    To take the fifth root, press [5] [SHIFT] [^] and then the number that you want to take the root of. For example, to find the fifth root of -243, press:
    [5] [SHIFT] [^] [(-)] [2] [4] [3] [EXE]
    The answer shows as -3.
  7. Can our scientific calculators convert between degrees, radians, and grads?
    No, those conversions need to be done manually.
  8. What is a Round Number Calculation?
    Round Number Calculation occurs during an overflow error. For example (on an 8 digit calculator): 99,999,999 x 123 would give the result E 122.99999. The round number of the result is the display value x 100,000,000, which in this case is 12,299,999,000 (the actual answer would be 12,299,999,877). You can press [C] to clear the error and continue the calculation.
  9. What calculators can be used for ACT or SAT?
    You can go to the following page for information on what calculators are acceptable for ACT:
    The page doesn't specify which models are acceptable, although it does specify some models that are not acceptable. For the most part, it presents guidelines as to what types of functions would not be acceptable.
    Similar information regarding calculators that are acceptable for SAT can be found at the following page:
  10. Why aren't powers/exponents being calculated properly when I use the [EXP] key?
    The [EXP] key is used for scientific notation, not for entering powers. It is the same as saying "times 10 to the power of". Whatever number is entered immediately after that is the power that 10 is raised to.
    To raise a number to a power, use the [^] key.
    For example, let us say you want to enter 6 to the 4th power. The proper way to enter this would be:
    [6] [^] [4]
    The result would be 1,296.
    If you instead entered [6] [EXP] [4], then this would be interpreted as 6(10^4), or 610,000, which would be 60,000.
  11. How do I enter sexagesimal (degrees-minutes-seconds) value on FX9750G / CFX9850G series graphing calculators?
    To enter a value in sexagesimal (degrees-minutes-seconds) format, press [OPTN] [F6] [F5]. Above the [F4] key, you should see '". Use the [F4] key to enter the value. So, to enter 12 degrees 34 minutes 56 seconds, you would enter:
    [1] [2] [F4] [3] [4] [F4] [5] [6] [F4]
    This will appear on the display as 123456 but it is treated as 1234'56".
    After performing a calculation, you can view the result in sexagesimal format. The [F5] key should appear as '" with an arrow over it. Press this key to change the answer to sexagesimal format. For example, if your answer is 59.375 and you press [F5], it will then be displayed as 5922'30".
  12. What is an overflow error?
    Whenever the integer part of a calculation result is longer than the maximum number of digits that the calculator can display, you will receive an Overflow Error. The result will be presented as a rounded number. (Please refer to the question "What is a Round Number Calculation" for more information.)
  13. Why do I keep getting an error message when I try to perform arithmetic or trigonometric calculations?
    The error messages should indicate what the problem is. See the error message list in your calculator's user's guide for more information.
    For example:
    Ma ERROR or Math ERROR
    Cause: The calculation result is outside of the allowable calculation range or you are trying to perform an illegal mathematical operation (such as division by zero).
    Action: Check your input values and adjust them to allow the calculation result to be within the allowable range. If you are using memory for your calculation, make sure that you check the memory value.
    Syn ERROR or Syntax ERROR
    Cause: The calculation expression is the wrong syntax, or the program you are using contains a syntax error.
    Action: Press the or key to display the location of the error, and correct it.
    Stk ERROR or Stack ERROR
    Cause: The calculation you are performing has caused the capacity of the numeric stack or the command stack to be exceeded.
    Action: Simplify your calculation expression. You could also split your calculation expression into two or more parts and execute the parts separately.
    Mem ERROR
    Cause: You executed a matrix, graphing, or some other operation that caused remaining memory capacity to be exceeded.
    Action: Delete memory data you no longer need. Make sure that the number of variables used in your expression does not exceed the number of variables that are available.
    Other error messages may appear to let you know that a calculation you are trying to perform is not compatible with your current mode, angle unit, display, or other setting. If this happens, check the setup of your calculator and try again.
  14. How can I put a matrix into reduced row echelon form on FX9750G / CFX9850G series?
    Use the program ROWREDA. This is built into the FX-9750G Plus and CFX-9850GB Plus, and can be loaded using the following procedure:
    1. Press [MENU].
    2. Select PRGM by moving the highlight to PRGM and pressing [EXE]. Alternatively you can press the [log] key (which is the key for B).
    3. Press [F6].
    4. Press [F5] (LOAD).
    5. Cursor down to "U.S.A" and then press [EXE].
    6. Press the cursor down several times until ROWREDA is highlighted, then press [EXE].
    For other calculators in this series that do not have the program built-in, it can be downloaded from the following page:
    To use the program, go to MAT mode and store the matrix in Matrix A. After executing the program, the result will be in Matrix R.
  15. Logarithm of a number to an arbitrary base.
    Logarithms in base 10 (common logarithm) and e (natural logarithm) can be calculated directly using the keyboard. But if someone wants to calculate a logarithm in any other base, he has to convert this logarithm to a logarithm in base 10 using the following equation
    logba = log a / log b
    (log a is the log of a in base 10, and, log b is the log of b in base 10 )
    The correctness or validity of this equation can be verified simply. In this way then it is possible to calculate the logarithm of a number to any base with Casio's scientific/graphical calculators .
    Note: With a graphic calculator such logarithms can also be drawn.
    With the following models, you can specify base b using the syntax "log(b,a)".
    The models:
    ClassPad300, RM-ClassPad, ClassPad Manager
  16. How do I generate random numbers on FX97xx / FX98xx / CFX98xx calculators?
    The random number generator function is called Ran# and can be accessed in RUN mode by pressing:
    [OPTN] [F6] [F3] (PROB) [F4] (Ran#)
    Note: In the paragraph above, the bold text indicates keypresses, while the aqua-colored text represents the menus that appear at the bottom of the calculator screen. This also assumes there are no menus on the bottom of the screen when you begin. If PROB is already on the screen, then the [F6] key is not necessary, just press [F3] then [F4] at this point.
    The Ran# function generates a random decimal number between 0 and 1. If you need to generate a number with a higher range, then there may be extra steps involved. For example, to choose a random number between 0 and 100, you would enter:
    Let's say you want to simulate a dice roll, where you get an integer between 1 and 6. Your first step would be to do:
    This will give you a random decimal number between 0 and 6. But we need an integer, not a decimal. To make it an integer, you would change this to:
    This now gives you an integer between 0 and 5. We just need to add 1 to the result.
    The result should be an integer between 1 and 6.
  17. Is there any supplementary material for the graphing calculators?
    Here are two resources that discuss examples of applications that our calculators may be used for.
    * College Algebra and Trigonometry Graphing Calculator Investigations, Dennis C. Ebersole
    * Technology Resources Manual for Casio Graphing Calculators Calculus, Addison-Wesley Vol. 2
  18. How do I do exponential regression in the form y=ab^x?
    Casio graphing calculators do exponential regression in the form y=ae^bx. Some other calculators (for example, Texas Instruments) use y=ab^x instead.
    Some information on what to do can be seen here:
    Start by performing the exponential regression on the Casio calculator. You will be given values for a and b that fit into y=ae^bx. I recommend that you write down these values.
    The b value in y=ab^x is different than the b value in y=ae^bx. To avoid confusion, the Web link mentioned above uses an uppercase B for the y=aB^x equation. We will do the same for the remainder of this procedure.
    Let us examine the equation:
    We know that e^(bx) is equal to (e^b)^x because of one of the rules of powers. Therefore, this equation can be rewritten as:
    We are looking for the form:
    By comparing the last two equations, we can see that B=e^b. Therefore, to find the B value for y=aB^x, simply calculate e^b using the b value you got from y=ae^bx earlier.
    On the FX-9750G/CFX-9850G/FX-9860G series, this can be done if you go to RUN, press [SHIFT] [ln], then enter your b value, then press [EXE].
  19. Can our scientific calculators convert between degrees, radians, and grads?
    No, those conversions need to be done manually.
  20. Is it possible to accomplish time calculations with scientific calculators?
    Yes, it is possible. The sexagesimal base number is based on the number 60. This base number is used for time and angle measurement. For time measures where 1 hour equals 60 minutes and 1 minute=60 seconds, Casio scientific calculators can carry out time calculations as well as angle calculations.
    The following are calculations using the fx-115MS. Operation on other scientific calculator models (fx-991MS, fx-115WA, fx-991WA, fx-3650P, fx-82ES, etc.) is similar.
    To convert the decimal value 2.258 to a sexagesimal value

    Key Operation:
    [2] [.] [2] [5] [8] [=] ['"]
    Displayed Result: 258.8 (2 hours 15 minutes and 28.8 seconds)
    Time calculation with sexagesimal values:
    5 hours 34 minutes and 48 seconds are to be added to 8 hours 16 minutes and 51 seconds.
    Key Operation:
    [5] ['"] [3] [4] ['"] [4] [8] ['"] [+] [8] ['"] [1] [6] ['"] [5] [1] ['"] [=]
    Displayed Result: 1319 (13 hours 51 minutes and 39 seconds)
    The result can be converted into decimal value.
    Key Operation ['"]
    Displayed Result: 13.86083333
  21. How is the ClassPad different from a conventional graphing calculator?
    The ClassPad is not a graphing calculator but a next-generation math education tool. With the ClassPad students can not only manipulate complex mathematical expressions but also grasp the relationship between mathematically different fields (for example, vector and geometry) and learn how to think along the lines of mathematics easily. The ClassPad is different from a conventional graphing calculator in capabilities in that:
    * The ClassPad adopts a pen touch operation for inputting.
    * The ClassPad is able to input/output
    a natural mathematical expression.
    (the program mode is excluded)
    * For example, when you calculate using the ClassPad, you can input a proper fraction, limit, differentiation, integral, and matrix in a mathematical expression in the textbook.
    * You can also output the calculation result in a natural mathematical expression.
    * The four application software programs have been added in addition to the capabilities of a conventional graphing calculator as follows.
    3 Dimensional Graphing
  22. Is there anything I need to remember when performing BASE-N and logical operations?
    Yes. In addition to decimal values,calculations can be performed using binary, octal and hexadecimal values. Calculation results in the BASE-N Mode are always displayed using the currently selected number system. You can change the number system setting to change a value to another number system. You can also perform negative value calculations and logical operations.
    When inputting hexadecimal values, use the keys marked with red or green alphabetic letters to input A, B, C, D, E, and F. In this case, you do not need to press the [ALPHA] key before pressing the letter key. Converting from BASE-N to Decimal
    Number system Base example (Decimal number 28) Result
    Binary 2 1x 24 + 1x 23 + 1x 22 + 0x 21 + 0x20 11100
    Octal 8 3x 81 + 4x 80 34
    Decimal 10 2x 101 + 8x 100 28
    Hexadecimal 16 1x 161 + 12x 160 1C

    The following are calculations using the ALGEBRA Fx2.0 (PLUS). Operation on other scientific calculator models (FX1.0 Series, cfx-9850G Series, fx-9750G Series, etc.) is similar.
    Example: To convert the decimal value 28 to its binary equivalent.
    1.On the RUN Mode SETUP screen, specify decimal for the MODE setting.
    [CTRL] [F3](SET UP) [F2](Dec) [ESC]
    2.Input the decimal value 28.
    [2] [8] [EXE]
    3. Specify binary as the desired number base.
    [F3](DISP) [3](>Bin) [EXE]
    Displayed Result: 11100
    Logical operations
    Logical operations display the results of the bitwise logical product (and), logical sum (or), exclusive logical sum (Xor,Exor), and exclusive negative logical sum (Xnor). In the case of negative binary, octal, and decimal values, the two's complement of the binary equivalent of the value is taken and then result is returned to its original number base value. With the decimal number base, negative values are displayed with a minus sign.
    Truth Table
    A B A And B A Or B A Nand B A Nor B A Xor B
    0 0 0 0 1 1 0
    0 1 0 1 1 0 1
    1 0 0 1 1 0 1
    1 1 1 1 0 0 0

    A Nand B is equivalent to: Not (A and B)
    A Nor B is equivalent to: Not (A or B)
    A Xor B is equivalent to : (A Or B) And (Not(A)Or Not(B))
    To take the bitwise Or and Xor of the hexadecimal values 19 and 1A, and convert the results to binary values.
    Or Operation: 19 Or 1A
    1. On the RUN Mode SETUP screen, specify hexadecimal for the MODE setting.
    [CTRL] [F3](SETUP) [F3](Hex) [ESC]
    2. Input the hexadecimal value 19.
    [1] [9]
    3. Input the logical operator.
    [F2](LOGIC) [4](Or)
    4. Input the hexadecimal value 1A, which will display the hexadecimal result.
    [1] [X,??,T](A) [EXE]
    Displayed Result: 1B
    5. Specify binary as the desired number base.
    [F3](Disp) [3](>Bin) [EXE]
    Displayed Result: 11011
    Xor Operation: 19 Xor 1A
    1. On the RUN Mode SETUP screen, specify hexadecimal for the MODE setting.
    [CTRL] [F3](SETUP) [F3](Hex) [ESC]
    2. Input the hexadecimal value 19.
    [1] [9]
    3. Input the logical operator
    [F2](LOGIC) [5](Xor)
    4. Input the hexadecimal value 1A, which will display the hexadecimal result.
    [1] [X,??,T](A) [EXE]
    Displayed Result: 3??
    5. Specify binary as the desired number base.
    [F3](DISP) [3](>BIN) [EXE]
    Displayed Result: 11
  23. What tests are calculators permitted for?
    AP Calculus requires a graphing calculator.
    Any graphing or scientific calculator is permitted on the following as long as it does not have a QWERTY keyboard, electronic writing pad or a pen-input/stylus-driven interface:
    SAT II Math, IC & IIC
    AP Statistics (graphing expected)
    AP Chemistry
    AP Physics
    See for more information.
    For the GED, the FX-260 Solar is suggested.
  24. Can I connect the ClassPad to a personal computer?
    Yes. You can transmit and receive data, and transfer images using the ClassPad Manager software, which is on the CD-ROM that comes with the ClassPad, along with the included SB-300 USB cable or the optional SB-305 serial cable.
    You can transfer the programs and materials (e-Activities) of the ClassPad made using a personal computer/ClassPad to the ClassPad using ClassPad Manager.
  25. Can I operate the ClassPad in the same way as a conventional graphing calculator?
    Unlike a conventional graphing calculator, the ClassPad is operated with a pen touch operation.
    For example, it is necessary to select a menu or input a function or variable from the soft keyboard and Icon panel with the pen touch operation. (You can display and turn ON/OFF the soft keyboard from the keypad.)
    You can also input a figure, decimal point, variables x, y, z, symbols +, -, , , =, comma, (),^ from the keypad of the ClassPad.
  26. Vista Compatibility
    Please click here for information on Vista compatibility for our calculators.
  27. How large is the memory capacity of the ClassPad 300?
    500 KB of RAM and 4MB of flash memory are installed in the ClassPad 300.
  28. Can the ClassPad use programs that were created for other Casio graphing calculator models?
    No, programs for other Casio graphing calculators will not work with the ClassPad.
  29. How do I enter hexadecimal numbers on FX115MS?
    First, you need to put the calculator in BASE mode:
    [AC] [MODE] [MODE] [3]
    You should now see 0 with a small letter to the right, showing which base you are in. You will see d for decimal, H for hexadecimal, b for binary, or o for octal.
    You can switch bases using the [DEC], [HEX], [BIN], or [OCT] keys. These are labeled in green above the appropriate key, so the [HEX] key is actually the [^] key. You do not need to press [SHIFT] or any other key first.
    When entering hexadecimal numbers, you can use the A through F keys that are labeled in red, but do not press [ALPHA] to enter a hexadecimal digit. So, to enter the hex digit A, simply press the [(-)] key. To enter the hex digit F, simply press the [tan] key. The letter will appear in bold so that you know it is a hex digit and not a variable. If you press [ALPHA] first, then the letter will not be bolded, and will be treated simply as a variable.
    For more information, please see pages E-9 through E-11 of the FX-115MS User's Guide 2, which can be downloaded in PDF (Adobe Acrobat) format at the following link:
  30. After performing a sequence of calculations in FX115MS, when I attempt to store the answer in memory, the value changes to something else altogether.
    If you perform a simple two-step operation, then after pressing the [=] key, you can press [SHIFT] [STO] [M] to store the answer into memory.
    Example: 9-2, press [=] and the answer is 7, then press [SHIFT] [STO] [M] and 7 is stored in memory.
    If you perform additional calculations after that (using the answer from the previous calculation), then the calculator will begin using answer memory (as seen by Ans on the display). When you are finished with the calculation, and press [SHIFT] [STO] [M], it will repeat the last calcuation and store its result into memory instead.
    Example: 33, press [=] and the answer is 9. Then press [-] [2] [=] to subtract 2 from that answer, and the new answer is 7. Then press [SHIFT] [STO] [M], and 5 is stored in memory (because it subtracted 2 from the 7 that was in answer memory).
    If you perform multiple calculations in sequence and have an answer that you want to store in memory, press [Ans] followed by [SHIFT] [STO] [M].
    This may also apply to other calculators in the FX-##MS series, such as FX-991MS.
  31. What is the calculation priority sequence that I need to keep in mind when performing a calculation?
    Calculations are performed in accordance with a specific "calculation priority sequence". For example, multiplication and division operations are executed before addition and subtraction operations. Also, each calculator model performs calculations in accordance with a preset calculation priority sequence. Check the applicable section in your calculator's user's guide for information about the calculation priority sequence it uses for calculations.
    (Chapters: Calculation Priority Sequence; Order of Operations; Order of Operations and Levels)
    -4^2 result -16
    2+3*4 result 14
    In the first example, 4 is squared and then the result is made a negative value. This is because the power operation has a higher priority than the negative sign.
    In the second example, the 3*4 operation is performed first, and then the result is added to 2.
    This is because multiplication and division has a higher calculation priority than addition and subtraction.
    Expressions enclosed in parentheses are given top priority. Parentheses can be nested inside each other. In this case, the expression inside the innermost set of parentheses is given top priority.
    (-4)^2 Result 16
    (2+3)*4 Result 20
  32. Is it possible to accomplish time calculations with my calculator?
    Yes, it is possible. The sexagesimal base number is based on the number 60. This base number is used for time and angle measurement.
    Time measures (1 hour 60 minutes, 1 minute=60 seconds) Casio scientific calculators can carry out time calculations as well as angle calculations.
    The following are calculations using the Algebra FX 2.0(Plus).
    Examples: To convert the decimal value 2.258 to a sexagesimal value
    Input the value 2.258 and press the buttons as follows:
    [OPTN] [F6] [F3] (ANGL) [5] (>DMS) [EXE]
    Displayed Result: 25'28.8" (2 hours 15 minutes and 28.8 seconds)

    Time calculation with sexagesimal values:
    5 hours 34 minutes and 48 seconds are to be added to 8 hours 16 minutes and 51 seconds.
    Press the buttons as follows:
    [5] [OPTN] [F6] [F3] (ANGL) [4] ('") [3] [4] [F3] (ANGL) [4] ('") [4] [8] [F3] (ANGL) [4] ('") [+] [8] [F3] (ANGL) [4] ('") [1] [6] [F3] (ANGL) [4] ('") [5] [1] [F3] (ANGL) [4] ('") [EXE]
    Displayed result as decimal value: 13.86083333

    The result can be converted into sexagesimal value.
    Press the buttons as follows:
    [OPTN] [F6] [F3] (ANGL) [5] (>DMS) [EXE]
    Displayed Result: 131'39" (13 hours 51 minutes and 39 seconds)
  33. When solving mathematical expressions on FX115MS, it does not allow me to input a value for a certain variable. Using the example on page E-5 of User's Guide 2, I am not prompted for B.
    When you are entering the equation, the equals sign you are using is the one that is on the [CALC] key near the upper-left corner of the keypad, not the [=] key in the lower-right corner. Anything you press immediately after the [ALPHA] key will give you whatever is in red print above the key.
    So, when entering the example on page E-5 of User's Guide 2, you would begin by entering:
    [ALPHA] [B] [ALPHA] [CALC] [ALPHA] [A] [] [ALPHA] [C] [-] etc.
    After you press [SHIFT] [SOLVE], the equals sign you need to press when specifying values for the variables will be the [=] key in the lower-right corner.
  34. I am having a problem registering the ClassPad 300, it keeps telling me my product key is wrong.

    Enter only the numerals, not the letters.

  35. What probes will work with my EA100 or EA200?
    Probes are available from Casio, Saltire and Vernier. Links to these companies are at:
  36. How can I save the battery power of my ClassPad?
    You can save the battery power of your ClassPad doing either or both of the following procedures.
    1. Your ClassPad has a "resume" feature that remembers its status when you turn it off , and restores the same status the next time you turn the ClassPad on. Resume feature operation requires power to operate, which means that some power continues to be consumed even when the ClassPad is turned off. The power saving mode lets you choose how long the resume feature to be operated after you turn off the ClassPad unit. You can specify 1 day, 1 week or 1 month. After the time limit you specified is reached, the resume feature is deactivated
    The following table (user's guide chapter 14-6) describes the power saving mode options that are available:
    To do this: Select this power saving mode option:
    Turn off the power saving mode (unlimited resume time) Off
    Limit resume operation to 1 day after power down 1 day
    Limit resume operation to 1 week after power down 1 week
    Limit resume operation to 1 month after power down 1 month
    Note: "Off" is the default setting. It means the maximal battery power consumption.
    Tip: To save the battery power choose the shortest resume time (one day).
    2. During the USB connection with the PC, the ClassPad 300 will be powered from the USB port of the PC. A physical connection with a running PC is enough to power the ClassPad. A Software connection via ClassPad Manager or other applications is not necessary.
    Tip: To save the battery power connect the ClassPad to a running PC if possible.
  37. Can I connect the ClassPad to the Data Analyzer EA-200?
    Yes. The Data Analyzer EA-200 is a digital device that makes it possible for you to sample data connected with everyday natural phenomena.
  38. What software is needed to use the EA200 EA100 Data Collector?
    The CFX9850 has software included to use the Casio probes. For other data collecting, the user may need to create a program or find one online. In addition, software for the FX2.0 models is found at:
    For the ClassPad 300:
    Software is coming soon for the FX9860.
  39. Is there emulator software available for the Prizm?
    A free (90 Day Trial) version will be available in early 2011.
  40. What types of equations can you enter in the Prizm equation solver?
    You can enter all different types of equations in the equation solver section for the calculator to solve and determine a single solution. Formulas and equations with variables on both sides are just to name a couple. Simply utilize the to enter in different variables.
  41. What does the key do on the Prizm Calculator?
    The option key gives you access to scientific functions and features that are not readily available on the calculator’s keyboard. The contents of the option key differ depending on the mode that you are in.
  42. Help! I accidentally erased my Add-in icons (Geometry, Picture Plot, and Conversion)on my Prizm How do I get those back on my calculator?
    Our suggestion, when resetting the calculator, is to reset the Setup Data and/or the Main Memory. But, if you happen to reset the Add-Ins and Storage, you will need to go to CASIO’s Worldwide Education website, Here, you will be able to download the Add-In software and the individual images and image series, to put back on your calculator. You will need to connect the calculator to the computer with the USB cable that came with the calculator. If you have misplaced the USB cable that came with the calculator, please contact your regional sales representative ( and they will be able to get one to you.
  43. On my Prizm when I input 7i + 15i, the calculator gives the answer of 22i; would that make this a CAS calculator?
    No, the PRIZM does not use CAS. When you input 7x + 15x, the calculator does not give you an answer of 22x. Instead, the calculator inputs a value for x, based on previous calculations, and gives you a numerical answer. A CAS calculator would display an answer of 22x.
  44. My PRIZM calculator displays my answers as a fraction. How can I change it to display a decimal answer?
    If you would like to change the last answer to a decimal, simply press the button, located right above the button. The button (Form to Decimal) is a toggle switch and will switch between a fractional answer and it’s decimal form. This button will also change any answer in Standard Form to a decimal and vice versa. For example, if you’re answer is 2 , by pressing the button, the calculator will change your answer to its decimal form. Also, using the division button, instead of our fraction button, will display answers as a decimal.
  45. How do I change the default menu settings of my Prizm Graphing Calculator? For example, change the calculator from radian mode to degree mode?
    To change the default settings of your calculator, you will need to choose a menu icon and then press (SET UP). From there, you can use the arrows to move up and down and choose the mode that you would like your calculator to display or calculate. The set up menu options do vary slightly depending on which icon you choose. A few examples of options you can change are the angle mode, complex mode, turning the coordinates on or off, turning the grid lines on or off, turning the axes scale on or off, and changing the way your calculator displays answers (fixed decimals, scientific notation, or fraction).
  46. Can I upload my own images or image series to the PRIZM calculator?
    Images and image series files on the PRIZM are a specific file type. If you have a specific image you would like to use, we would love to convert the image for you. To do this, you will need to submit a PRIZM Activity form, which can be found here:
  47. Can I connect my Prizm to a projector.
    The Prizm connects to any Casio Projector with a USB input (utilizing the USB cable).
  48. I've entered an equation into my Prizm, but it won't graph! Help!
    After entering your equation into the calculator, press to store the equation and then press (DRAW) to view the graph of the equation(s).
  49. I've set up a dynamic graph on my Prizm but it will only play through the sequence of graphs a few times. How do I get it to play continuously?
    Before you have the calculator display your dynamic graph, press (SET UP) to enter the set up for the dynamic graph section and arrow down to Dynamic Type. Press (Cont) to set the calculator to graph continuously, until you ask it to stop.
  50. I've entered a function on my Prizm calculator but when I try to DRAW, I keep getting an error message? What's going on?
    The most likely reason for this error message is that the variable used in the equation was not the independent variable, inputted by using the key. If you used any other x, the calculator will give you an error message.
  51. On the Prizm can I change the color of the points in my scatterplot?
    Anytime you would like to change the color of a graph, a shape, or points, press (Format).
  52. I've plotted a point on my Prizm but I want to delete it? What can I do?
    There are two ways to delete points. If you’ve just plotted a point, pressing (UNDO) will undo the last action you did. So, in this case, it will delete the last point that you plotted. The other way to edit points, after plotting, is to press (EDIT). The status screen prompts you to select the point you want to move. Move your point to the new location, press and then when complete. If you would like to clear out all your points and plot new ones, press (DELETE).
  53. How do I find critical points on my graph using the PRIZM?
    After drawing the selected equation, press G-Solve () and select which critical points on your graph you would like calculated.
  54. On my Prizm Can I display more than one statistical graph at a time?
    Yes! You can display up to three statistical graphs at a time. To do this, from the main Statistics screen, press (GRAPH), then (SELECT). Select which graphs you would like to display at the same time and press (DRAW).
  55. In the Prizm menu, what does the eActivity icon do?
    eActivity allows you to create a math problems or exercises that will walk the students through certain procedures, step-by-step. It’s like an activity, but on the calculator, so paper copies are not needed. Students can use the eActivity files to keep classroom notes, memos of problems and their solutions. We are working on having the current lineup of PRIZM activities converted into eActivities for teachers to download from our website.
  56. Does a USB cable come with the Prizm to connect it to the computer?
    Yes, The PRIZM comes packaged with a USB cable, an SB-62 cable for unit to unit communication, 4-AAA batteries, a utilities CD and quick start guide.
  57. How do I change the type of graph I want my PRIZM to display in Statistics mode?
    Once you’ve entered your data in the Statistics mode, press (GRAPH). You will notice that the tabs along the bottom have changed and you now have new options. One of those options is (SET); this allows you to change the way the calculator displays your data.
  58. Can the PRIZM graph rectangular, polar, and parametric equations on the same coordinate plane?
    Yes, the PRIZM, as well all Casio graphing calculators, can easily graph multiple types of equations, just by changing the "type" of equation to graph using the (TYPE) button.
  59. On my Prizm how do I conditionally format the cells in the Spreadsheet mode?
    Once you've entered your data in the Spreadsheet mode, press for more options, then you will see (CONDIT). Arrow down to Expre to change the settings to the formatting that you would like, based on the options across the bottom of the screen. Again, make note that you can press to view more options.
  60. The table I created on my Prizm only produces five coordinate pairs; how do I set it to show more
    After entering your equation into the Table mode, press (SET). This will allow you to set up the appearance of the table. Also note, while viewing your table, you can type in your own independent values, and the calculator will display the corresponding dependent value, allowing you to create custom tables at the touch of a button.
  61. When the Prizm is connected to a computer will it display like my calculator?
    Yes, The "Screen Receive" feature (that utilizes the USB connection) allows the exact, full-color screen to be displayed.
  62. How do I navigate around the menu system on my Prizm?
    There are two ways to work y through the Icon Main Menu. First, you can use the Replay keypad and arrow up, down, left or right to highlight the icon that you want and press . Second, you can press the key that is associated with the number or letter in the upper right corner of each icon. For example, if you wanted to graph an equation, you could arrow over to the Graph Icon and press , or, just press .

    Also, if you want to return to the Main Menu screen, simply press the key, which is located to the left of the Replay keypad.

    Another important key is , which is located just below . will take you back one screen each time you select it, just like the back button on your web browser. It will not, however, take you to the Main Menu.
  63. On the Prizm, when I select an equation in Conic Graphs, I noticed the modify option; what does that do?
    The modify option allows you to change the coefficients for in your equation. One way to do this is to use the right and left arrow buttons. When pressing those buttons, the coefficient that is highlighted (in magenta and with an arrow next to it) will change, based on the step value. Another way to change the coefficient values is type in your own value and press . This will change the highlighted coefficient, without regards to the step value.
  64. With a Casio fx-300ES Plus. When an answer is given in fraction form, how do I change that fraction into a mixed number? Example if the answer provided by the Casio is 6/5, how can I get it to show this as 1 1/5?
    This is an easy fix, look for the key that stays s->d, this changes every standard form number to a decimal, for instance in the problem you asked, you got an answer of 6/5, when you press s->d, you will get an answer of 1.2. If you wanted the mixed answer press shift s->d, this will give you the mixed number
  65. How can I turn a radical into a decimal?
    Once you get an answer, press the f-->d key and the radical with change into a decimal.
  66. How to save something in casio scientific calculator?
    1. If you want x=5, first type the number 5
    2. Then Shift RCL (STO)
    3. Then Press the key that is a closed parenthesis ( . It is not necessary to press the alpha key.
    Now if you want to perform an operation using that value, press the Alpha key then close parenthesis.
  67. How to graph piecewise functions with the fx-9750GII/PRIZM calculator?
    After you type in the function, input a comma, then use a bracket to select the domain or x values.

    For example, if you wanted to graph y=x-5 from -10
  68. Can the PRIZM simplify equations such as 3a+5 + 4a -8 to 7a-3?
    The PRIZM can not do this mainly because if it did, it would be considered a CAS calculator and not be allowed on most standardized test. We do have a CAS calculator called the Classpad that will do this though.
  69. How can I perform Binary operations on the fx-300ES?
    The fx-300ES does not perform binary operations, the next scientific model that would perform binary operations is the fx-115ES
  70. How can I get specific numerical values from the table on the Casio fx 300es
    for example, f(x)=2x-5, find f(2), f(2.5), f(3.5)?
    Press the mode key, then select table. Type in the function, the f(x) is already there:

    The x variable can be found by pressing shift and the close parenthesis key. After typing in your function, press the = key. It will then ask you where you want your table to start, to cover the values that are halves as well, set your step at .5, then = sign again. A table should appear that has all the values you need, plus a few extra.
  71. How do I clear the memory on my Casio fx-9750GII?
    1. From the main menu, select SYSTEM (last icon)
    2. Select F5 for Reset
    3. You can choose Setup data or Main Memories
    4. Press F1 to confirm your choice
  72. Can I use my fx-9860GII on the SAT and ACT test?
    Yes, both tests allow the Casio fx-9860GII, as well as the PRIZM and the fx-9750GII. Other standardized test like AP calculus and statistics allow our non-CAS graphing calculators as well.
  73. When I type in radical -1, I get an error.
    Your calculator is not in a+bi or imaginary mode. Under the main menu, press shift menu, scroll down to complex mode, and select f2, for a+bi, then EXE
  74. How do I clear the memory on my Casio fx-9750GII?
    1. From the main menu, select SYSTEM (last icon)
    2. Select F5 for Reset
    3. You can choose Setup data or Main Memories
    4. Press F1 to confirm your choice
  75. Can I transfer data from a fx-9750GII to a fx-9860GII?
    Yes, as long as you have the 3 pin cable (not USB) you should be able to transfer data.
  76. How to use fx-9750II to graph the absolute value function.
    1. From the main menu, select GRAPH
    2. Press the option key OPTN
    3. Press F5 to correspond with NUM
    4. F1 corresponds with ABS, which is the absolute value function.
  77. How to use fx-9750II for greatest common integer function (step function).
    1. From the main menu, select GRAPH
    2. Press the option key OPTN
    3. Press F5 to correspond with NUM
    4. F2 corresponds with INT, which is the greatest integer function.
  78. What information would I input from a table into the STAT calculation in order to receive the correct equation for a Quadratic Regression problem
    In order to do a quadratic regression, you need at least 3 coordinate points. From the main menu, select stat, input the x values in the first column, then the y values into the second column. Then using the F keys, press F2 for calc, F3 for Reg, then F3 for x^2. This will give you the values for a, b and c.
  79. How do you reset a classpad after getting a memory overflow message
    1. Use the stylus to press the P button on the back of the ClassPad. - Follow the RAM reset operation, the ClassPad restarts automatically.

    2. After the ClassPad restarts, perform the ClassPad setup operation that your perform each time you replace ClassPad batteries (touch panel alignment, display contrast adjustment, display message language selection, keyboard settings).

    The application menu appears after you finish the setup operation.
  80. In the casio prizm can you put in roots of an equation and the equation be determined?
    Thank you for your question regarding your PRIZM. I have wished for the same thing every time I teach polynomials. The PRIZM can not do this mainly because if it did, it would be considered a CAS calculator and not be allowed on most standardized test. We do have a CAS calculator called the Classpad that will do this though.
  81. Which current calculator models have a USB port
    The fx-9750/9860Gll Series and the ClassPad 300 series
  82. Does CASIO have a program that allows a teacher to use calculators on a trial basis?
    Yes, the Casio loaner program lets Schools try before they buy. That's right test drive any of our Educational Calculators free for 30 days. To get started, fill out a loaner request with your schools information and click submit.
  83. I'm taking the GED, which calculator should I use?
    The fx-260 has been the calculator endorsed and recommended for the taking the GED. By 2012 the fx300ES will also be approved for the GED.
  84. Is any of your software compatible with a Macintosh?
    Not currently but we're working on it and should be available soon.
  85. Do you have to purchase the calculator prior to taking the on-line course?
    No, you will be prompted to download the free calculator emulator to you computer to take the course. Upon completing the course You will receive a FREE calculator.
  86. Do you receive credit or professional development hours for taking the course(s)?
    Credit for Professional Development varies from state to state and you can inquire with the district's PD coordinator to find out your states policy.
  87. Is the Geometry application on the fx-9860 series considered CAS?
    No, the Geometry program on the fx-9860 Series is not a CAS
  88. Do you have any kind of data collection device?
    Yes, the EA-200, is our data collection device and works with our graphing calculators and ClassPad. It comes packaged with everything you need to get started including Optical, Voltage and Temperature probes.
  89. Which models can plug directly into a Casio projector?
    Any Casio Graphing calculator with a USB port can be directly connected to any Casio projector with a USB port.
  90. Do you have any calculators that have overhead units?
    Yes, all of our educational calculators have a corresponding overhead model. Listed in school accessories.
  91. What kind of educator support does CASIO offer?
    Casio offers World Class Educator Support. When you school makes a purchase we provide Free Training and Professional Development. We also provide free online instructional courses and videos, plus free downloadable activities and workbooks. Earn Casio Rewards points with every purchase redeemable for any Casio products. Trade-In and Trade-Up programs and many other benefits
  92. Which CASIO models have CAS?
    Only the ClassPad has a Computer Algebra System
  93. What is an emulator?
    An Emulator is an exact copy of the calculator for your computer. It operates like the hand held model but with many added features. You can change it's size, record and edit your keystrokes, save screenshots and much more. It also works great with an interactive white board
  94. Can the fx-9750GII and the fx-9860GII be used on national exams?
    AP exams, PSAT, SAT, ACT and state-level exams
  95. What is "natural display"?
    Natural Display shows formulas, inputs and displays results exactly as they appear in a textbook.
  96. What is CAS?
    CAS stands for Computer Algebra System and is a software program that facilitates symbolic mathematics. The core functionality of a CAS is manipulation of mathematical expressions in symbolic form.
  97. What is the difference in the fx-9750G series and the GII series?
    The fx-9750Gll Series has more memory, a built in E-con data collection program, USB port, increased program functionality. The ability to connect to our projectors and a optional computer emulator.
  98. Which CASIO calculators offer natural display?
    The fx-300, fx-115, fx-9860GII, Slim, and ClassPad all have Natural Display.
  99. My calculator will not turn on or is frozen.
    If your calculator does not turn on, push the restart button on the back of the calculator with the end of a paperclip or something similar. If that doesn't work try removing and reinserting the batteries, making sure they are installed correctly.
  100. Does CASIO have any on-line courses?
    Yes we have Free online courses for the fx-9860G Slim & ClassPad 101. We also have free online instructional video for the fx-9750/9860Gll Series Calculator.
  101. What is the difference in the fx-9860G series and the GII series?
    The fx-9860Gll Series has a natural display input and output, a backlight, preloaded geometry and E-con programs, increased program functionality.
  102. Can we purchase a site-license for an emulator?
    Yes, Emulators are available for a few different models and are sold as single or a site license for the school. Check our product pages or speak to one of our representitives.