fx-991ES PLUS-2

fx-991ESPLUS-2 fx-991ESPLUS-2BU fx-991ESPLUS-2PK
 fx-991ESPLUS-2  fx-991ESPLUS-2BU  fx-991ESPLUS-2PK


Simple and easy to use

Optimal education tools realized through s design that emphasizes comfort in the hand, legibility, and usability through the pursuit of simplicity

Natural Textbook Display

Features Natural Textbook Display format for displaying equations and calculation result just as they appear in textbooks

Authentic quality

Excellent quality and authentication ensure confidence and peace of mind for use in educational settings

Main functions

  • Random integers
  • Fraction calculations
  • Combination and permutation
  • Statistics (List-based STAT data editor, standard deviation, regression analysis)
  • 9 variables
  • Table function
  • Comes with new slide-on hard case
  • Equation calculations
  • Integration/differential calculations
  • Matrix calculations
  • Vector calculations
  • Complex number calculations
  • CALC function
  • SOLVE function
  • Base-n calculation



Complex number calculations

Complex number calculations





Matrix operations

Matrix operations


  • Non Programmable

  • Number of Functions : 417
    Number of Functions : 417

  • Natural textbook display
    Natural textbook display Display expression same as textbook.

    10 + 2 digits 10-digit mantissa + 2-digit exponential display.

  • Dot matrix display
    Dot matrix display High-resolution screen provides beautiful looking graphs every time.

  • Multi-replay
    Multi-replay Quick and easy recall of previously executed formulas for editing and re-execution.

  • Solar & Battery
    Solar & Battery Solar powered when light is sufficient, battery powered when light is insufficient.

  • Plastic keys
    Plastic keys Designed and engineered for easy operation.

  • Basic Mathematical Functions Trigonometric, Exponential logarithmic, etc.

  • Table Generation You can create a numerical table based on that expression by registering a function expression. In addition, graph functions can be represented by graphs.

  • Base-n calculation Binary/Octal/Hexadecimal

  • Scientific Constants You can use constant symbols used in physics, science classes.

  • Vector

  • List based STAT-data editor
    List based STAT-data editor Viewing and editing of input data in list format, showing data groups (x-data, y-data, frequency) and surrounding data.

  • Basic Statistics Standard statistics functions such as Mean, SUM, Standard Deviation, and Regression

  • Non Graphing

  • Differentiation

  • Matrix

  • Equation

  • Integration

  • Metric conversion function
    Metric conversion function You can convert a number in one unit to a number in a different unit.

  • Complex number calculation

Size of case / Total weight

  • Dimensions (D × W × H) : 161.5×77×11.1mm
  • Weight : 95g