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Review by  Patrick Strain
Reviewed on 2021-03-16
This app is very helpful and usually gives correct answers, but there are a few problems. First, the "App" version blocks access to the use of fractions and the added OmniCalc functions (such as Secant, Cosecant, and Cotangent) while running the app. Second, the Tangent Line barely gives any useful information; it just displays the X and Y coordinate that the user already inputed and the slope value for x^1. Also in Tangent Line, it doesn't seem like it is able to handle pi or fractions very well (if at all) and will usually give an incorrect answer for equations that contain either of those or that has an answer that contains either of them. Third, according to another user, there is a bug with the Base ("Program") version that causes errors to be thrown (an error message shows on the screen and closes the program) whenever Theta is used. They seem to have posted a fixed version of the Base version somewhere in this site's File Archives (using the alternate name for this app, "A+Calc"). Finally, answers are sometimes displayed in an awkward manner (Ex: 3x^2 + 1/2x is displayed as 3 * x^2 + 1/2 * x); although, this appears to be an issue with the PrettyPt app used to display these answers. My overall score for this app is 7 out of 10.

Review by  Brett Landau
Reviewed on 2014-10-08
This app is bloated. Anytime I try to run a function, it gives an Argument error and on multiple occasions in the middle of tests, it has cleared my entire memory and deleted my programs, of which, I stored notes on. I probably failed a few tests because of this non-working app. I'll try the "fixed" one also available here by a different developer and see if that works.

Review by  T M
Reviewed on 2007-02-09
Note! This review was written for a previous version of this file!

This program is a must-have. I downloaded it at the beginning of my Advanced Calculus course, but found that there were a number of functions I didn't need. Once we moved on to implicit differentiation, however, this program was the answer to my prayers.

If you're taking Calculus, you MUST download this program. If you can think of anything you'll need to do (all the way down to finding the equation for a tangent line of an implicit function), this program will do it.

Review by  James Bond
Reviewed on 2006-08-02
Note! This review was written for a previous version of this file!

This is hands down the best Calculus program out there. If you are a calculus student whether in high school or in college, this is the ONLY program that you will need. The only thing negative I can say about it is that it takes up a lot of your calculator’s memory. This program will do everything and it does it well

My favorite part about this application is that it prints out the answers for you in the same way you would write it down on your test. This program does differentiation, like nothing, and does the chain rule, and all the other rules instantly. It even can do the trig functions of differentiation. The program has a nice interface with a index, to access which feature you would like to go to.

Installation is a little harder than other programs because of the necessary installation of “Symbolic”, “Omni Calc”, and “PrettyPT”.

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