# Description

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

c) Bugfix

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!

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# Reviews

Helpfulness

Newest

Rating

Helpfulness

All Versions

All Versions

Latest Version

4.0

168 total

5 85

4 33

3 21

2 11

1 14

A Google User

thx a lots!!but need a little correction on (+/-)..i'm agree with marten,dave& true.. that's a fatal error!! please fix it for us all.TQ

A Google User

Its confusing, I do it better with my mind. Nothing extraordinary. Good to ppl struggling with trig though

A Google User

Bionic usa I like but on high res device you need magnifying glass

A Google User

Nice App for the Trig challenged like me. Droid Eris.

A Google User

Awesome Had to learn trig for a new job. This was amazingly helpful.

User reviews

Bionic usa I like but on high res device you need magnifying glass

Awesome Had to learn trig for a new job. This was amazingly helpful.

Simple & Effective Concise info on a dark background. Thx Nexus 1

Dumb thought it would explain trig properties does nothing of the sort.

When you set the angle the wrong angle is shown. Eg. 90 ° is shown as 270°

Um... counter-clockwise produces a positive θ/degree growth. You have it backwards. You may want to fix that huge error...

Would be 5* if value of circle could be changed from 1 to any number

Value of (0,-1) is located at top of circle? Kind of a major error

Sorta odd that the circle is top side down. And I wish it could do rad as fractions of pi.

This app is amazing it makes my freshman year easy and helps me understand trigonometry concepts

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

This should help This should help for college. But the menu needs upgraded. I click 'other', and it freezes. But I'll like it.

# Additional information

Updated

February 20, 2011

Size

215k

Installs

10,000 - 50,000

Current Version

1.16

Requires Android

1.5 and up

Content Rating

Everyone

Permissions

Report

Flag as inappropriate Offered By

Pritron

Developer

# Similar

## Trigonometry Mathematics

Application designed for beginners to learn the basics of trigonometry. This explains completely its mathematical and geometrical interpretation and physical significances. Deals all about trigonometric formulas and identities. Very helpful tutorials for students to solve mathematical problems under the category of heights and distances…try out now…

✔ Introduction Trigonometry

✔ Angle (Trigonometry)

✔ Quadrant Angle (Trigonometry)

✔ Co-terminal angles

✔ Trig functions of large and negative angles

✔ Reference angle

✔ Trigonometry functions - introduction

✔ SOH CAH TOA - trigonometry

✔ Inverse trigonometry functions

✔ Trig functions of large and negative angles

✔ Sine (sin) function - Trigonometry

✔ Arcsin

✔ Graph of the sine (sin) function - Trigonometry

✔ Sine waves - Trigonometry

✔ Cosine (cos) function - Trigonometry

✔ Arccos

✔ Graph of the cosine (cos) function - Trigonometry

✔ Tangent (tan) function - Trigonometry

✔ Arctan

✔ Graph of the tangent (tan) function - Trigonometry

✔ Cotangent

✔ Secant (sec) - Trigonometry function

✔ Cosecant (cosec) - Trigonometry function

## Trigonometry

trigonometric formulas for all:)

This App has all the important formulas and concepts

This App has all the important formulas and concepts

-Basic definitions

-Trigonometric functions

-Inverse trig functions

-Unit circle

-Law of sine and cosine

-Negative angle formulas

-Periodic formulas

-Double & triple angle formulas

-Power-reduction formulas

-Degree to radians formulas

-Sum and difference formulas

-Product to sum formulas

-Sum to product formulas

-Reduction formulas

-Compositions of trig functions

-Trigonometric equations

-Euler's formula

## Trigonometry Quick Reference

Nuzedd

1

Trigonometry Quick reference guide has all the important formulas and concepts covered to help the student review them on regular basis.

Topics include:

a) Definitions - Right Triangle Definition and Unit Triangle definition

b) Facts and properties of trigonometric functions i.e., Domain, Range and period

c) Formulas and Identities (includes Tangent and Cotangent Identities, Reciprocal Identities, Pythagorean Identities, Even/Odd Formulas, Periodic formulas, Double Angle formulas, Degree to radian formulas, Half-angle formulas, Sum and Difference formulas, Product to sum formulas, Sum to product formulas, and Co Function Formulas)

d) Unit circle explained

e) Inverse Trigonometric functions and its properties

f) Law of sines, Cosines and tangents which are define the relationship between the angles of a triangle and its sides.

I wish this app to be use-centric. So, I would like to request you to try this app and make any suggestions to improve it further. I will be happy to provide updates based on your inputs.

## Trigonometry. Unit circle.

Education for all. Geometry. Trigonometry. Unit circle.

Recommended for pupils and students.

Recommended for pupils and students.

Visual understanding and calculating sine, cosine, tangent, cotangent, secant and cosecant function, degrees and radians.

Description of functions.

Table of values.

Trigonometric formulas and identities:

symmetry, shifts, periodicity,

basic identities,

sum and difference of the angles,

double angle,

triple angle

half-angle,

sum and difference functions

multiplication of functions,

lowering the degree formula,

derivatives and integrals.

Move point to define angle and functions.

Tap circle center to determine the exact angle you want.

Use options to show what you want.

Find mistake or did not find what you were looking. - please send us e-mail.

## Trig Triangle Solver

hxn

1

Trig is a simple, easy to use and powerful trigonometry calculator or triangle solver. Enter your 3 known values and Trig will do the rest. Easy.

Trig will:

• solve right angle triangles

• let you enter angle values in either degrees or radians, or a combination

• convert angle answers between degrees and radians

• solve for area

For $1 you can unlock the Pro features as an in-app purchase

Pro features include:

• solve any triangle, not just right angled

• set the number of decimal places that answers are given in

• enter angle values in fractional pi radians, degrees or decimal radians, or a combination

This app has no ads. The in-app purchase is entirely optional, it's not forced upon you. There's a button in the Settings and Info screens that will initiate the in-app purchase window.

(Screenshots taken on a Nexus 5, 7, and 10, running Android 5.0 Lollipop)

HyperXNode is focused on powerful yet easy to use features, reliability, and delivering this within an elegant and intuitive UI.

Prepare your devices for more apps from us in the near future!

Please rate and review our app if you install it, or just email us directly.

If you give a low rating, please leave a review because we would really like to know what needs improving.

Thanks.

Explanation of Permissions:

• Full network access and billing: these are required to provide the in-app purchase of pro features.

• We do not have access to any of your information at any time if you buy the in-app purchase.

## Mobile Trigonometry

Now carry your personal math tutor on your Android phone! Install the mobile trigonometry app and get instant assistance anywhere, anytime. All math lovers will simply love this app and if you are a math hater then we bet it, this app would surely turn you into math lover with the simple tips and tricks available on this app.

With this app on your phone, all the trigonometry formulas will be on your finger tips now. And solving a problem would be as easy as snapping your fingers… Enjoy solving your mathematics problems with Mobile Trigonometry.

## Trigonometric Formulas

GK Apps

1

This free math app is a collection of the most important trigonometric formulas for sine, cosine, tangent and cotangent. It shows you:

- symmetry laws

- shifts laws

- periodicity laws

- angle sum and difference identities

Best math tool for school and college! If you are a student, it will helps you to learn geometry!

Note: Trigonometric functions are used for computing unknown lengths and angles in triangles (in navigation, engineering and physics). The sine and cosine functions are also commonly used to model periodic function phenomena such as sound and light waves, the position and velocity of harmonic oscillators.

## Trig Quizzer

This App will test your knowledge on Trigonometric Unit Circle values. Students can quiz themselves to help prepare for tests and quizzes. Learning the exact unit circle values is vital to being successful in Trigonometry and some applications of Calculus.

Trig Quizzer even keeps track of your best times and high scores so you can challenge yourself and show off to your friends. At the end of each game you are provided a summary of each question, your answer, and the correct answer so you can review your missed questions.

Play from 3 different modes to test your knowledge on trig functions, inverse functions, and important identities.

From the Settings option, change the difficulty (include angles greater than 2pi and less than 0, and all 6 trig functions) and change the number of questions in each game.

## Trigonometry Calculator

Tony G

1

Trigonometry Calculator is a mathematical program through which, put 2 values (2 sides, 1 side and 1 angle, area and 1 side,area and 1 angle, perimeter and 1 side, perimeter and 1 angle), calculates the remaining unknowns of the right triangle. The program is in Italian and English language and is very convenient for both students and workers who use trigonometry such as operators of CNC machine tools. There is also a table which lists all the mathematical formulas to learn the fundamentals on trigonometry (the text is in Italian only). The program, unlike others of its kind, not only is complete but is also free.

## Trigonometry RUS

Cribs of the trigonometry, habitual to Russian eye on your phone!

For English version see Trigonometry Theta.

For English version see Trigonometry Theta.

App contains

- Definitions of sine, cosines, etc.

- The basic identities

- Parity

- Inversion

- Multiple angles formulas

- Reduction formulas

- Sum formulas

- Derivatives

- Integrals

And more..

**Tags**

Sin cos tg ctg

# More from developer

## ColorWheel

Pritron

1

Simple ColorWheel tool which shows the relationship/harmony of colors.

Current mode available: mono, complement, triad, tetrad & accented analogic.

Version 2.4 Added RYB Model - RED YELLOW BLUE

Version 2.5

No new feature. Just remove the location service on the advertisement engine. So sorry for any inconvenient cause

*****************

Please email to jeffrey@pritron.net if you have any suggestion/improvement or bugs. Thank You.

## ColorWheelPro

Pritron

1

ColorWheel tool which shows the relationship/harmony of colors.

Current mode available: mono, complement, triad, tetrad & accented analogic.

Support Saturation and Luminance, you have more colors like Black and Gray Color.

You can save your Favorite Pattern to the Favorite List and retrieve it back.

For trial, please try the ColorWheel (Advertisement Version, with lesser features )

We got more than 120 patterns and more to come. Stay Tune!

Version 2.5

Added RYB Model - Red Yellow Blue

Please email to jeffrey@pritron.net if you have any suggestion/improvement or bugs. Thank You.