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catigaelectronics

CS-991 Scientific Calculator

CS-991 Scientific Calculator

Regular price $19.99 USD
Regular price Sale price $19.99 USD
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  • OVER 400 FUNCTIONS - This calculator supports over 400 functions such as: Basic Arithmetic Functions, Expressions and Values, Complex Number Calculations, CALC and SOLVE Feature, Statistical Calculations, Base-n Calculations, Equation Calculations, Matrix Calculations, Creating a Number Table from a Function, Derivatives/Integrals, Vector Calculations, Scientific Constants, Metric Conversion, Calculation Ranges, Number of Digits, and Precisions
  • IDEAL FOR HIGH SCHOOL THROUGH COLLEGE - Great for Algebra, Geometry, Trigonometry, Statistics, Calculus, Biology, Chemistry, Physics, Computer Science and Engineering courses.
  • DUAL POWERED - Powered by both solar and battery energy, ensuring uninterrupted usage even in low-light conditions. The solar panels are the primary source of energy, while the battery serves as a backup - meaning this calculator can last for a very long time.
  • 4-LINE SCREEN WITH ADJUSTABLE CONTRAST - Featuring a large and easy-to-read 4 line screen with adjustable contract for ease of use.
  • DETAILED INSTRUCTION MANUAL - Includes a detailed instruction manual with examples - to help you with your calculations.
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Customer Reviews

Based on 205 reviews
67%
(138)
14%
(28)
11%
(23)
8%
(16)
0%
(0)
A
Adam
It is awesome

Appreciate!

R
Roger Smith
Great Choice

All of the other ones cost so much, but I've been able to do everything I need to with this one. It seems to have most of the functions that the ones we used in high school had.

J
Julia Parker
Works great!

Perfect calculator for my college Contemporary Math class! Also comes with instructions embedded on it so you cant lose them!

M
MP3
Great Product

Just what the doctor ordered! Just in time forThe new school year! My son is taking college algebra and he loves his new calculator.

L
Liz in FL
Great for your HS and College student

Comparable to the Texas instrument calculator. This also graphs for u. Only downfall is the case falls off / battery door falls off