ARctan inverse tangent function calculator
The inverse tangent function is a mathematical term that refers to the inverse of the function y=tanx.
The inverse of the function y = tanx, (x ∈ R), denoted y = arctanx, is called the arctangent function. Its value range is (-π/2, π/2). The inverse tangent function is one of the inverse trigonometric functions.
The usual principal values of the arctan(x) and arccot(x) functions graphed on the cartesian plane
| y | x=arctan(y) | |
|---|---|---|
| degrees | radians | |
| -1.732050808 | -60° | -π/3 |
| -1.000000000 | -45° | -π/4 |
| -0.577350269 | -30° | -π/6 |
| 0 | 0° | 0 |
| 0.577350269 | 30° | π/6 |
| 1.000000000 | 45° | π/4 |
| 1.732050808 | 60° | π/3 |
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