For those who want to learn Trig. Wasn't what I was looking for, but it's AD free AND requires no special permissions, so I gave this 5 stars. Good job.
An awesome free app worth paying for! Larry Feldman has developed the most robust, well-defined math apps on the market. Choose your subject, and Larry probably has an app for it. For the math student interested in an all-inclusive app, Math Pro by Larry Feldman is superior to all other apps on the market. Learn through his notes, test your answers with his calculator. He's done it all. I am a former calculus instructor; and my professional opinion, Larry's apps are engineered for learning. And learn you will.
Awesome!!!!! Math lovers, here iz the app u r looking 4 ..
Amazing! Great app. Easy to use.
Great! This app is a huge help to me, but I think it would be even more useful if it gave the steps taken to solve the problem.
Very very good These are my first comments. I found this reference app very very good, and I will be using it with my students. One comment tought. I teach trigonometry using the Unit Circle fully (to calculate the six functions and their inverse, as well as identities, etc). This is the first Android app I have seen that showed the six trigonometric functions on the Unit Circle (congratulation), although non interactive. I found just one small trouble: the Csc/Cot graph: it is hard to infer the triangle formed even when the side "1" is explicit, unless it is drawn upside down. The cotangent line is the horizontal tangent intersecting (0,1), from the work of the arab astronomers such as Abu Al-Wafa (980 c.e.). A green line profile can then be drawn representing the one on the app to illustrate its equivalency. Interactivity will make this part of the tutorial Excellent.
Had to change the keyboard to alpha-numeric because some devices don't show a decimal point or negative sign otherwise. Believe me, I'm not happy about it either.