acos
fn
real acos(real x) @safe pure nothrow @nogcCalculates the arc cosine of x, returning a value ranging from 0 to π.
| x | acos(x) | invalid? |
|---|---|---|
| ≥1.0 | NaN | yes |
| <-1.0 | NaN | yes |
| NaN | NaN | yes |
fn
double acos(double x) @safe pure nothrow @nogcditto
fn
float acos(float x) @safe pure nothrow @nogcditto