Definition

A mathematical function that gives the angle whose tangent is a given number. It is the inverse of the tangent function.

Example

To find the angle, you can use the arctangent of the ratio of the opposite side to the adjacent side in a right triangle.

Conversation

Have you ever heard of the term arctangent?

Yeah, isn’t it the inverse of the tangent function?

Exactly! It’s pretty fascinating how it works in trigonometry.

I find it interesting too, especially when solving those equations.

Synonyms & Antonyms

Root Explanation

Arctangent → It is formed from "arc" (from Latin *arcus*, meaning bow or curve) and "tangent" (from Latin *tangere*, meaning to touch). The word refers to the angle whose tangent is a given ratio, relating to the curve of a circle.

Memory Tip

Think of an 'arc' as a curved line and 'tangent' as something that 'touches' that curve — that's how arctangent relates to angles and curves.

Visually Confused Words