noun. the inverse function of the tangent; the angle that has a tangent equal to a given number.
- inverse tangent
- arc tangent
- trigonometric function
- arc- (English)
- tan (English)
Example sentences of the word 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.
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.
Take the inverse tangent, or arctan, of the previous result.