Six Trigonometric Functions Calculator

Compute \( \sin \theta, \cos \theta, \tan \theta, \cot \theta, \sec \theta, \csc \theta \) for any angle \( \theta \) in degrees or radians.

Understanding the Six Trigonometric Functions

For a given angle \( \theta \) (in degrees or radians), the six trigonometric functions are defined as:

\[ \sin \theta,\quad \cos \theta,\quad \tan \theta = \frac{\sin \theta}{\cos \theta},\quad \cot \theta = \frac{1}{\tan \theta},\quad \sec \theta = \frac{1}{\cos \theta},\quad \csc \theta = \frac{1}{\sin \theta} \]
⚠️ Note: Functions are undefined when denominator is zero: \(\tan \theta, \sec \theta\) undefined at \(\theta = \frac{\pi}{2} + k\pi\); \(\cot \theta, \csc \theta\) undefined at \(\theta = k\pi\).

Trigonometric Functions Calculator

Select input mode and enter angle θ
DEGREES
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RADIANS
As fraction of π:
× π
As decimal radians:
radians
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