128 ratings (4.133 average)
Simple interactive program to learn Trigonometry.
ver 1.7 bugs fixed (fixed the crash & other bugs) & added Pythagorean Theorem.
ver 1.8 added Law of Sines
ver 1.9 added Distant in a Circle
ver 1.11 a) added Law of Cosines
b) minor bug fixed.
c) added Positive/Negative sign to Radians & Degrees
ver 1.12 a) Law of Cosines - wrong label
b) Law of Sines - rework and enhance with degree>90
c) Trigonometry Definition - enhance description for Law of Sines.
ver 1.13 a) Relabel for Pythagoream Theorem, Law of Cosines, Distant in a circle & Common Height.
b) Law of Tangents
d) New Icon
ver 1.14 a) Law of Cosines - added samples to find length of side
b) Law of Tangents - enhance with different value
c) Law of Sines - Circum Circle - Relationship of Law of Sines in a Circle
ver 1.15 a) Inverse Function - convert ratio to degrees
ver 1.16 a) Mollwide's Formula - verify your calculation
b) Triangle Area
c) Trigonometry Identities - more to come!
Last comments from Android Market
Value of (0,-1) is located at top of circle? Kind of a major error
Um... counter-clockwise produces a positive θ/degree growth. You have it backwards. You may want to fix that huge error...
This app is amazing it makes my freshman year easy and helps me understand trigonometry concepts
Sorta odd that the circle is top side down. And I wish it could do rad as fractions of pi.
Would be 5* if value of circle could be changed from 1 to any number
Fantastic app!! Easy to use and looks great.
Would be nice to be able to enter an angle, including decimal values and ° ' ". Occasionally force closes. Droid X.
Got a little better. Now can do anything under one inch. Can you add trackball support to move the sliders trying to hit .3574 with your finger is imp
Would be nice to be able to adjust diameter of the circle