Casio FX-991EX Original Scientific Calculator Classwiz 552 function Spreadsheet


  • POWER SOURCE : Solar
  • BRAND : Casio
  • MODEL : FX-991EX
  • SIZE : Handheld
  • FEATURES : LCD Display
  • KEY SIZE : Regular
  • TYPE : Scientific
  • DISPLAY SIZE : Regular
  • MPN : FX911EX

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FX-991EX Original Scientific Calculator Classwiz 552 function Spreadsheet

Calculator Model: FX-991EX

FX-991EX Scientific Calculator Classwiz

New in box

Features overview

The ClassWiz series with high-resolution LCD and many other extras

The Classwiz series offers a new high-resolution LC display with 192×63 pixels and a resolution that is four times higher than that of the familiar displays of the FX-ES Plus series. In addition, the new ClassWiz series boasts new hardware with a faster processor and double the memory size.

Functions & general information


There is also a spreadsheet which allows the user to perform basic spreadsheet calculations on a scientific calculator for the first time. In addition, results can be viewed on a smartphone or tablet thanks to the newly available QR code¹ function.

Detailled Specification:

  • High-resolution LC display with 192 x 63 pixels
  • Natural-V.P.A.M. – Natural display
  • 552 functions
  • Icon menu
  • Spreadsheet
  • QR code function¹
  • Solving equations and systems of up to four equations
  • 4X4 matrices
  • Vector calculations
  • Integration calculations
  • Differential calculations
  • Probability distribution
  • Calculation with technical symbols
  • Undo-Function
  • Complex number calculation
  • Base-N calculations
  • Equation calculations
  • Inequality calculation
  • SUM calculation
  • 47 wcientific constants
  • 40 metrixc conversions
  • Automatic parenthesis
  • 24 Parentheses level
  • Variable memory (9)
  • Trigonometric and invers trigonometric functions
  • Hyperbolic and invers hyperbolic functions
  • Power / Power Root calculations
  • logarithmic calculations
  • Exponential calculations
  • Root calculations
  • Combinatoric and 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
  • SCI/FIX/ENG function
  • List based statistics
  • 1-variable statistics
  • Standard deviation
  • 2-variable statistics (Regressions)
  • Percentage calculation
  • Non-natural input
  • Output with √ form
  • Output with Π form
  • Function table

¹ QR Code is registered trademark of DENSO WAVE INCORPORATED in Japan and in other countries.

General specifications

  • 552 functions
  • Display: „Natural Textbook Display“ Natural V.P.A.M.
  • High-Resolution LC-Display, 63 x192 dots, 16/10 + 2 digits
  • Energy supply: Solar + Battery (1xLR44)
  • Comes with new slide-on hardcase
  • Dimensions (H x W x L): 77 x 165,5 x 11,1 mm
  • Weight: 90g

We offer 3 shipping services :

  • * Economy - (Registered air mail) - 5-25 business days (Depends on destination)
  • * Standard - (Eco Post) 3-10 business days (Recommended if available)
  • * Expiated - (EMS) - 2-7 business days (Fastest service)

· Items will be shipped within 2 business days on payment received.

· A tracking number will be provided after the order is shipped.

· You will be able to track your order on: 17TRACK.NET

· We ship to verified addresses only and all shipping labels are directly printed from eBay, Please make sure the address is correct.

· If there is any problem with your order or you have any question, please do not hesitate and feel free to contact us.

  • We offer 100% satisfaction guarantee with a 60 - day hassle free return.
  • In the unlikely event that you receive a wrong item, please send us a message.
  • Please note: all returned items must be in the original packaging.
  • We accept Pay-Pal only.

Questions: Please message us if you have any questions or concerns.

If you have any questions or concerns, please feel free to send us a message. We usually answer within one business day.

Our business days are: Sunday - Thursday.

Contact us via the eBay messaging system here

**International Buyers - Please Note:** Import duties, taxes, and charges are not included in the item price or shipping cost.

These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.

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