# 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.

Review deleted

# 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

Unrated

Content Descriptors

Warning – content has not yet been rated. Unrated apps may potentially contain content appropriate for mature audiences only.

Permissions

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Pritron

Developer

# Similar

## 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.

## Trigonometry Quick Reference

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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 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

## All Math Formula

All essentials math formula and equations:

Algebra

Geometry

Trigonometry

Calculus:

Limits

Derivatives

Integrals

Basic Properties & Facts

Arithmetic Operations

Exponent Properties

Properties of Radicals

Properties of Inequalities

Properties of Absolute Value

Distance Formula

Complex Numbers

Logarithms and Log Properties

Factoring and Solving

Factoring Formulas

Quadratic Formula

Square Root Property

Absolute Value Equations/Inequalities

Completing the Square

Functions and Graphs

Constant Function

Line/Linear Function

Parabola/Quadratic Function

Circle

Ellipse

Hyperbola

Square

Rectangle

Circle

Triangles

Parallelogram

Trapezoid

Cube

Cylinder

Sphere

Cone

All in one

Geometric Symbols

Trigonometry Functions

Special Angles

Trigonometric Function Values in Quadrants II, III, and IV

The Unit Circle

Angle Addition Formulas

Double Angle Formulas

Half Angle Formulas

Power Reducing Formulas

Product‐to‐Sum Formulas

Cofunctions Formulas

Law of Sines

Law of Cosines

Law of Tangents

Pythagorean Identities (for any angle θ)

Mollweide’s Formula

Limits Definitions

Relationship between the limit and one-sided limits

Limits Properties Formulas

Basic Limit Evaluations Formulas

Evaluation Techniques Formulas

Some Continuous Functions

Intermediate Value Theorem

Derivatives Definition and Notation

Interpretation of the Derivative

Basic Properties and Formulas

Common Derivatives

Chain Rule Variants

Higher Order Derivatives

Implicit Differentiation

Increasing/Decreasing – Concave Up/Concave Down

Extrema

Mean Value Theorem

Newton’s Method

Related Rates

Optimization

Integrals Definitions

Fundamental Theorem of Calculus

Properties

Common Integrals

Standard Integration Techniques

Improper Integral

Approximating Definite Integrals

## 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

## Maths Formulas Free

NSC Co.

1

Available in many languages, this is a perfect app on Google Play that provides all basic formulas in mathematics. It's very convenient for all students in high school or university and engineers to look for any easy or complicated formulas. It includes:

- Geometry

- Algebra

- Trigonometry

- Equations

- Analytic Geometry

- Differentiation

- Integration

- Matrix

- Probability and statistics

- Units Conversion.

- Math Tricks.

This app also has many tools to calculate the geometric shapes or find the roots of equations. Users can also share any formulas with friends by many ways: email, message, or Facebook.

Not only for smartphones, this app is also suitable for tablets with compatible interfaces.

- Geometry

- Algebra

- Trigonometry

- Equations

- Analytic Geometry

- Differentiation

- Integration

- Matrix

- Probability and statistics

- Units Conversion.

- Math Tricks.

This app also has many tools to calculate the geometric shapes or find the roots of equations. Users can also share any formulas with friends by many ways: email, message, or Facebook.

Not only for smartphones, this app is also suitable for tablets with compatible interfaces.

New features of the app:

- Multiple languages supported: English, French, Vietnamese, Chinese, Spanish, Japanese, German, Korean, Russian, Portuguese, Italian, Greek, Thai, Indonesian, Arabic, Hindi, Bengali, Malay, Turkish, Dutch, Polish, Romanian, Persian, Ukrainian, Azerbaijani and Swedish (27 languages totally). Users can change between English and other languages by setting in the language button. More languages to come soon.

- Favorite folder: users can save frequently used formulas into this folder.

- Search function: in each category, type on Search bar to quickly get a formula.

- Add new category "Units Conversion": conversion of all common units.

- Tools to convert measurement units, including: Weight, Length, Area, Volume, Speed, Time, Temperature, etc..

- Add your own formulas or notes in "Favorite" section.

- Add your own customised tools in "Tools" section.

Maths Formulas - a must-have app for your smartphones and tablets.

## Trigonometric Formulas

This is suitable for all students, teachers and practising engineers.

This app has gentle introduction with large number of diagrams and graphs for deeper appreciation of trigonometric concepts.

Most useful formulas are included with relevant diagrams. The formulas help in solving and proving trigonometric equations.

Radians are introduced early. Trigonometric function values for commonly encountered angles provided with diagrams.

Angle reflections with respect to X Axis and Y axis are dealt with in detail. Graphs are used for clarifying the rotation and reflection formulas.

Circumscribed and inscribed circles formulas explained with diagrams.

Different formulas for computing area of triangle are provided.

Series expansion for trigonometric functions provided.

This app can be used with mobiles phones and tablets of all sizes.

Inverse Trigonometric functions are dealt with in great detail.

# More from developer

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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

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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.