# Trigonometric Functions Calculator

Written by:
PK

On this page is a trigonometric functions calculator, which calculates the result for a given input angle for the 6 trigonometric functions – sine, cosine, tangent, cotangent, secant, and cosecant.

## Using the Trigonometric Functions Calculator

To use the tool to find the results of the trigonometric functions for a given angle, enter the angle, choose how its measured (degrees or radians) and compute.

• Angle: Enter the angle which you'd like to compute the functions using
• Degrees or Radians: Choose which units you use to measure the angle

Where results are undefined, you'll see "NaN".

## What are the trigonometric functions?

The trigonometric functions, which are defined in terms of the unit circle – or, for angles under 90 degrees (square), alternatively defined using a right triangle.

In terms of the right triangle, the functions are defined as:

• sine: opposite/hypotenuse