Reddit reviews Scientific Graphic Calculator - CATIGA CS121 - Scientific and Engineering Calculator - Programmable System (Black)

Scientific Calculator with a Graphic Function- This is a scientific calculator that is able to show graphs of formulas. With a screen large enough to be able to display graphs and equations simultaneously in order to facilitate calculations and corrections in high detail. Its 7x3.3 size ensures comfortable use.Programmable System - Has a programmable system for all level courses and promotes student learning of concepts instead of button memorization for more efficient learning.Over 280 functions-including fractions, statistics, complex number calculations, linear regression, standard deviation, permutations, and variable solvingPerfect for Advanced and Beginner courses including Pre-Algebra, Algebra I, Algebra II, Geometry, Trigonometry, Calculus, AP Calculus, AP Statistics, Biology, Chemistry, Physics, Finance & Business.If you are not able to turn on the calculator, please press the reset button on the back! If you still have any other issue, we offer a 365-day limited warranty. Please contact us and we will give you a response within 24 hours.