# 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

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 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

## 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.

## 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

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.

## 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

Visual Quiz to improve your trigonometry skills and get prepared for examinations.

Test your ability and practice the angle functions in a smart intuitive way.

Test your ability and practice the angle functions in a smart intuitive way.

• Visual method

• Specific functions values training (sine, cosine, tangent)

• Angle values in radians training

• Learn functions' values figuring out the unit circle (Best method)

## Easy Geometry Calculator

DudiE

1

perimeter and area of a square

Area of an equilateral triangle

area of a regular polygon with n sides

fix bug

Square area Area of a rectangle

Finding the side of a square surface

Trapezoid area

Parallelogram area

Dalton area Scope

Square Scope of the rectangle

Square volume Triangle

Area Scope of the triangle

Area of an equilateral triangle

area of a regular polygon with n sides

fix bug

Square area Area of a rectangle

Finding the side of a square surface

Trapezoid area

Parallelogram area

Dalton area Scope

Square Scope of the rectangle

Square volume Triangle

Area Scope of the triangle

Regular Shapes

the radius of the circle

Perimeter of a circle,

Perimeter of a square

radius larger & smaller

triangle sides abc: find angles ABC

Another 5 formulas

The 30° 60° 90° Right Triangle

The 45° 45° 90° Right Triangle

Equilateral triangle inside the circle

Find the Radius of a Circle Inscribed in a Triangle

Find radius of circumscribed Circle Inscribed in a Triangle

formula for lateral surface area of a cone

find slant height

find α-Angle

Volume of a truncated cone

Cone volume Cylinder volume

Volume basis. R.

Surface area Casing

Casing Cylinder shell Surface area

Volume of a pyramid

Lateral Area of a Rectangular Prism

Volume of Balls

Surface Areaof Balls

Spherical segment

radius of a spherical segment

formula Parabola

y= ax²+b+c

Coordinates x y axis

length of angle bisector

Find Lengths of sides and Area

given α β height

line from (x1,y1) to (x2,y2).

Finding the Slope of a Line

Finding the b

b intercept formula

y=mx+b

Linear Equations - Slope Forms

Positive Slope

Negative Slope

Zero Slope

Square in a circle inscribed in a square

Area of A Sector

Touch

RADIAN COS SIN TAN COT SEC CSC

isosceles triangle

the area of the shaded region

Area Of A Segment

surface area of the cube

Scale circuit Diameter radius

The total radius Surface radius

Volume of a cube Box

volume Missing rib

Vertical Angles

Supplementary angles

Angle bisector

corresponding angles

Acute Angles

Obtuse Angles...

ad

Shimul Rahman on Jan 31, 2014 at 10:37 AM

Excellent Excellent work

Johan Terefe

Excellent Great work it is helpful app

Michael Burns

Easy geom Was a great app but stopped working so cannot use it

Thomas Schneider

Awesome! Just what I needed!

Thank you for your response

## Symbolab

Symbolab

1

Your private math tutor, solves any math problem with steps!

Symbolab powerful calculator solves:

Algebra

* Equations

* Inequalities

* System of Equations

* Basic Operations (factor, join, cancel, simplify)

Functions & Graphing

* Line equations (line, slope, parallel, perpendicular, midpoint, distance)

* Functions (domain, range, intercepts, asymptotes, extreme points, periodicity, inverse)

Trigonometry:

* Trig Equations

* Trig identities proving

* Trig function evaluation

Calculus

* Limits

* Integrals (definite, indefinite, multiple)

* Derivatives

* Partial derivatives

* Derivative applications (tangent, normal, extreme points)

* Series convergence

(and more topics are added constantly)

Get free solution to any problem. Upgrade to get unlimited access to all subjects with steps.

For middle school through college students, teachers and parents.

## 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 and Azerbaijani. 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.

## 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.

# 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.