What is the tangent of an angle?

The tangent of an angle is the ratio of the opposite side to the adjacent side in a right triangle. It can also be defined as sin(θ) / cos(θ).

Why is it important to select degrees or radians?

The Math.tan function in JavaScript uses radians. If the angle is entered in degrees, it must be converted to radians before the tangent can be calculated.

What are some common tangent values?

Some common tangent values include: tan(0) = 0, tan(π/6) ≈ 0.577, tan(π/4) = 1, tan(π/3) ≈ 1.732. The tangent is undefined at π/2 (90 degrees).

Tangent Calculator | AzWebTools

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Understanding Tangent

The tangent of an angle in a right triangle is the ratio of the length of the opposite side to the length of the adjacent side. In terms of sine and cosine, tan(θ) = sin(θ) / cos(θ).

Radians vs. Degrees

Angles can be measured in degrees or radians. A full circle is 360 degrees or 2π radians. The conversion between degrees and radians is: radians = degrees * (π / 180).

About

The Tangent Calculator is a tool used to calculate the tangent of an angle, which can be entered in either degrees or radians. Tangent is an essential trigonometric function frequently used in mathematics, physics, and engineering. This calculator simplifies tangent calculations, making it accessible for students, engineers, and anyone requiring tangent values.

Examples

Tangent Calculator: quick try

Input

Input

Enter input...

Output

Shown in the Result area after you click the action button.

Load sample

Use the Load sample button or Sample menu to paste a valid example.

Input

Enter input...

Output

Adjust values and run again; use Copy on the result if needed.

Use Cases

Trigonometry calculations
Physics simulations
Engineering designs
Navigation and surveying

Frequently Asked Questions