What's New
mathmatical mistakes (cos value) are corrected.
App Description
You move SLIDER in this App, and you'll understand trigonometric function. At high school, when you solve a trigonometric equation (or inequality), you don't need to draw a circle figure by using this App. Furthermore, you will understand why "sin(x+pi/2)=cosx" by moving a graph of sinx. (MADE IN JAPAN)
iPhone Screenshots
(click to enlarge)
App Changes
- April 30, 2014 Initial release
- June 08, 2014 Price decrease: $0.99 -> FREE!
- June 18, 2015 New version 1.01
- July 03, 2016 Price increase: FREE! -> $0.99
Other Apps From takeshi nakamura
