Fun Trig at App Store analyse

App power index: 100 (based on ranks around App Stores today)
Education
Developer: Jordi Vilà
Price: 0 free
Current version: 1.0, last update: 7 years ago
First release : 24 Jan 2012
App size: 1004.29 Kb
4.2 ( 8392 ratings )
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Estimation application downloads and cost

> 2.2k
Monthly downloads
~ $ 900
Estimation App Cost


The Animated Unit Circle is a simple tool which uses animation to help Pre-Calculus students to explore and understand Circle Trigonometry better and to visualize the meaning of the sine wave which is so important in describing many different natural phenomena. The sine and cosine of an angle are defined as the lengths of the y (orange) and x (green) coordinates of a point rotating counterclockwise around a circle of radius one (Unit Circle) centered at the origin. When you click on the Graphs button you can watch the sine (orange) and cosine (green) graphs in a separate screen, where the mapping between the coordinates of a point on the unit circle and the distance travelled around it (yellow) can be watched through the animation.

By using the app and its features (like visualizing the angle of reference for any given angle), students might just see the answers to some usual questions they might be required to answer while learning Trigonometry such as:

- Name another angle with the same sine as 210°.
- What is the largest value of the sine function? What is the smallest value?
- Does the sine of angle increase or decrease as the angle increases from 180° to 270°?
- Find all values of an angle between 0° and 360° such that it sine is equal to -0.8192
- What is the reference angle of 190°?
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Available in countries
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Canada free
China free
France free
Germany free
Italy free
Netherlands free
Portugal free
Spain free
Poland free
UK free
India free
Japan free
Russia free
Turkey free
USA free
Korea, Republic Of free
Ukraine free
Available for devices
iPhone3GS, iPadWifi, iPad3G, iPhone4, iPodTouchThirdGen, iPodTouchFourthGen, iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612,