Inverse Tangent Calculator

There are 2 different ways that you can enter input into our arc sine calculator

You can enter input as either a decimal or as the opposite over the adjacent.

Method 1: Decimal

Enter a decimal number

Method 2: Adjacent/Hypotenuse

Entering the ratio of the opposite side divided by the adjacent. (review inverse tangent here)

Ultimate Math Solver (Free)

Free Algebra Solver ... type anything in there!