atan
fn
real atan(real x) @safe pure nothrow @nogcCalculates the arc tangent of x, returning a value ranging from -π/2 to π/2.
| x | atan(x) | invalid? |
|---|---|---|
| ±0.0 | ±0.0 | no |
| ±∞ | NaN | yes |
fn
double atan(double x) @safe pure nothrow @nogcditto
fn
float atan(float x) @safe pure nothrow @nogcditto