Tangent (tan) Calculator

Tangent (tan) Calculator

Calculated tan() of the number

tan() function

The tangent of an angle is the trigonometric ratio between the adjacent side and the opposite side of a right triangle containing that angle.

This is an online free tan calculator. You can calculate value of tan() trignometric function easily using this tool.

Important Abbreviations to remember

• SOH: Opposite / Hypotenuse (Sine)
• CAH: Adjacent / Hypotenuse (Cosine)
• TOA: Opposite / Adjacent (Tangent)

Understanding the Main Trigonometric Functions

In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions) are functions of an angle. They relate the angles of a triangle to the lengths of its sides. Degrees and Radians are units of measuring these angles. Degrees originated as an unit to measure how far constellations moved in a day (1 degree ~ 1 day of movement). Degrees measure angles by how far we tilted our heads(Observer's view point). Radians measure angles by distance traveled(Movers's view point).