Casio FX-991EX ClassWiz FX-991EX Scientific Calculator

Casio FX-991EX ClassWiz FX-991EX Scientific Calculator

Icon Menu Display, Textbook Display, Slide-on Hard Case, Spreadsheet, Natural-VPAM - Solar, Battery Powered - 3" x 6.5" x 0.4" - 1 Each
Item #: CSOFX991EX

Retail/List price: $29.99
$22.51 for Each

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Inventory last updated: 10/29/2020 5:15pm EDT
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  • "Perfect for Calculus, Algebra, Geometry and more"
  • 2-way power ensures reliable use in any setting
  • Online Visualization provides fast representation of data for entire class
  • High-resolution LCD shows more of your work to minimize scrolling
  • Advanced calculations let you quickly work through multi-step problems
The Manufacturer's Description Scientific calculator features a high-resolution LCD that displays more information at once to help you work through large spreadsheets, matrix calculations and more. Its comprehensive set of advanced calculations means you can work on integration and differential calculus along with vector and inequality calculations. Online Visualization Service allows you to generate a QR code for your problem, and then scan the code to immediately see a graphical representation of your data. Students can then see their collective data in real time with other students. Two-way power utilizes both solar and battery power for reliable operation in any setting. Calculator is perfect for basic math, Calculus, Algebra, Geometry, Probability and Statistics.


Product TypeScientific Calculator
Brand NameCasio
ManufacturerCasio Computer Co., Ltd
Product ModelFX-991EX
Product NameClassWiz FX-991EX Scientific Calculator
Product LineClassWiz
Manufacturer Part NumberFX-991EX
Manufacturer Website Address
Packaged Quantity1 Each


  • Solving equations and systems of up to four equations
  • 4X4 matrices
  • Vector calculation
  • Integration calculation
  • Differential calculation
  • Probability distribution
  • Calculation with technical symbols
  • Undo-function
  • Complex number calculation
  • Base-N calculation
  • Equation calculation
  • Inequality calculation
  • SUM calculation
  • 47 wcientific constants
  • 40 metrixc conversions
  • Automatic parenthesis
  • 24 Parentheses level
  • Variable memory (9)
  • Trigonometric and invers trigonometric
  • Hyperbolic and invers hyperbolic
  • Power / Power Root calculation
  • Logarithmic calculation
  • Exponential calculation
  • Root calculation
  • Combinatoric
  • Permutation
  • Prime factorization
  • Random integer
  • Conversion of polar coordinates into rectangular coordinates and invers
  • Fraction (two modes)
  • Conversion of sexagesimal into decimal and invers
  • Calculates in Degree, Grad and Radian
  • List based statistics
  • 1-variable statistics
  • Standard deviation
  • 2-variable statistics (Regressions)
  • Percentage calculation
  • Non-natural input
  • Output with ? form
  • Output with ? form
  • Function table
Country of OriginChina
Assembly RequiredNo
Calculator FeaturesIcon Menu Display
Calculator FeaturesTextbook Display
Calculator FeaturesSlide-on Hard Case
Calculator FeaturesSpreadsheet
Calculator FeaturesNatural-VPAM
Power SourceSolar
Power SourceBattery
Weight (Approximate)3.17 oz


UPC code079767032593
Alternate code/substitutionCSOFX991EX
Moore prefix and stock number
Package Weight
Package Height
Package Length
Package Width
Product Classification CodeOBCA
Country of OriginCN
Ready to AssembleN
Recommended substitutions
Old item number
Minority/Women-Owned/Challenged Vendor
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Special order itemN
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