## Table of Contents

### 1. arctan

**noun.** the inverse function of the tangent; the angle that has a tangent equal to a given number.

#### Etymology

- arc- (English)
- tan (English)

### Sentences with arctan

1. **Noun, singular or mass**

If the tangent of a number is a second number, the **arctan** of the second number is the first number.

2. **Adjective**

Converting tangents to degrees requires you to apply the **arctan** function to the tan of the angle you’re interested in.

3. **Preposition or subordinating conjunction**

Type the number whose **arctan** you want to find.

4. **Adverb**

Take the inverse tangent, or **arctan**, of the previous result.