A new high-performance scientific that has higher resolution to increase the amount of information to be displayed and super-fast calculations for high-stakes testing or for performing the most advanced mathematics.

Its new high resolution LCD screen allows for more information for applications like Spread-sheets and 4X4 matrix calculations. This calculator has a comprehensive set of advanced calculations for integration & differential calculations, along with vector and inequality calculations. For the middle and high school grades, we’ve incorporated basic spreadsheet functionality, ratio and statistical functionality, down to ratio calculation and prime factorization.

No matter what the need, this scientific can do it all! Need graphical representation for data generated by the fx-991EX – no problem! Generate a QR code for your problem, scan the code and immediately see a graphical representation of your data; with a classroom, students can see their collective date in real time with other students.

**Video Tutorials**

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Option | Value |
---|---|

Power supply | Solar+(G13/LR44)x1 |

Body / Color | Black |

Dimensions (mm) | 165.5 x 77 x 11.1 |

(inches) | 6.52 x 3.03 x 0.44 |

Approx. Weight (g) | 90 |

(ounces) | 3.17 |

Display (lines or dots) | 32x6lines(192x63dots) |

Auto Power OFF | Yes |

Number of functions | 552 |

Decimal Point Selector | Dot, Comma |

Option | Value |
---|---|

Natural Textbook Display | Yes |

Input | Yes |

Output(Fraction) | Yes |

Output(pi,root) | Yes |

UNDO | Yes |

Sexagesimal-decimal transformation | Yes |

Engineering Notation | Yes |

Recurring decimal | Yes |

Option | Value |
---|---|

Trigonometric, inverse trigonometric | Yes |

Hyperbolic, inverse hyperbolic | Yes |

Exponential, logarithmic(log,ln,10x,ex) | Yes |

Power and Radical Root | Yes |

Fraction | Yes |

Mixed Fraction | Yes |

Pi | Yes |

Rounding | Yes |

Angle Unit / Conversion (Deg, Rad, Grad) | Yes |

Base specified Logarithmic (Log aB) | Yes |

Prime Factorization | Yes |

Ratio calculation | Yes |

Option | Value |
---|---|

Variables | 9 |

Variables list | Yes |

Answer Memory (Ans) | Yes |

Previous Answer memory (Pre Ans) | Yes |

Engineering Symbol calculation | Yes |

Solve function | Yes |

CALC function (Stored Formula calculation) | Yes |

Scientific Constant | 47 |

Metric Conversion | 40 |

Option | Value |
---|---|

Statistics | Yes |

Standard Deviation | Yes |

Regression | Yes |

Variance | Yes |

Stat values list | Yes |

Combination, Permutation (nCr, nPr) | Yes |

Random numbers | Yes |

Random Integers (RanInt) | Yes |

Table function | Yes |

Type of table | f(x),g(x) |

Complex Number calculation | Yes |

Differentiation,Integration calculation | Yes |

Base-n calculations | Yes |

Break Even Point Calculation | Yes |

Matrix calculations | Yes |

Vector calculations | Yes |

Equation Calculation | Yes |

Simultaneous equation | Yes |

Investment Appraisal (cash flow) | Yes |

Polynomial equation | Yes |

Storing result | Yes |

Inequality calculation | Yes |

Sum calculation (SIGMA) | Yes |

Distribution calculation | Yes |

Spreadsheet | Yes |