Free Graphing Calculator (iOS App) by William Jockusch

Free Graphing Calculator screenshot 01

Free Graphing Calculator for iOS © William Jockusch. This screenshot is believed to be fair use because 1) it is low-res, and 2) it is used for the purpose of review.

One Free Calculator to Rule Them All

Developer William Jockusch describes his Free Graphing Calculator app with a bold claim: “Does far more than most of the paid calculators out there…let alone the free ones.” Given a few minutes to explore the app on an iPad, I was made a believer. The functionality and amount of data that have been put into Free Graphing Calculator are almost amazing.

To begin, we have access to almost everything a high school student or college undergrad would need in an expensive TI, but for free: basic calculator; graphing equations; linear, quadratic, and cubic equations solvers…But to stop there, that would be too easy.

The app includes a reference directory with categories for algebra, calculus, trigonometry, et cetera. It has most of the basic mathematical disciplines you could think of, with entries like “definition of a derivative” and “simplifying fractions.” There are also references for classical mechanics and logic.

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A Free Online Toolkit for Math and Science Courses

Desmos Calculator, courtesy of

Desmos Calculator, courtesy of

We’ve assembled an online set of tools for use by a teacher or tutor looking for high quality free resources, or by a student who needs a little math, physics, or chemistry homework help. The following resources have been selected by our editors as representing the best of what is offered freely on the Internet. Continue reading