# Trig Pro

\$0.99

Larry Feldman
Developer
2018年10月29日
Update Date
Education
Category
Age Rating
4+
Apps in this category do not contain restricted content.
9+
Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.
12+
Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.
17+
You must be at least 17 years old to access this App.
Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.
Trig Pro 螢幕截圖

Raise your hand if you think the only solutions to sin(x) = 0.5 are 30 degrees or pi/6 radians. Feel free to use your calculator.

There are actually an infinite number of solutions to most inverse trigonometry problems, but your calculator probably only gives you one. Guess what. Your teacher probably wants you to explain all of the solutions. "Trig Pro" does that.

This unique app also computes the reference angle in degrees or radians for any given angle. Useful in real life for most people? No. Useful for Trig students? Definitely.

"Trig Pro" contains a wealth of solvers and tutorials:

- A unit circle in vivid colors
- Unit circle representations of the six trig functions
- A triangle solver (SSS, SAS, AAS, ASA, SSA)
- A solver for showing attributes and graphical representations of the six trig functions
- Changes in amplitude, period, horizontal shifts and vertical shifts
- An extensive list of formulas and identities
- Tutorials on 30-60-90 and 45-45-90 triangles
- Step-by-step examples of solving inverse trig problems
- Step-by-step examples of simplifying trig expressions
- Angles of Elevation and Depression
- Polar curves: Limacons, Rose Curves, and Lemniscates

5 screen shots don't do this application justice. More screen shots at:

www.lfeldman.com/trigpro/screenshots

I welcome all comments, questions, and suggestions: lfeldman65@gmail.com

Follow me on facebook for app news, tips, and free Math help:

Please check out my other applications:

ACT Math Prep
Algebra Pro
Calculus Pro
Geometry Pro
Math Pro (six Math apps for the price of two!)
Physics Pro
PreCalculus Pro
Probability Pro
SAT Math Prep
Statistics Pro

### 最新版本3.6更新日誌

Last updated on 2018年10月29日

- Added more content for Inverse Trig Functions
Version History
3.6
2009年12月11日
- Added more content for Inverse Trig Functions

iPhone