Function acos [src]

Returns the arc-cosine of x. Special cases: acos(x) = nan if x < -1 or x > 1

Prototype

pub fn acos(x: anytype) @TypeOf(x)

Example

 test acos {
    try expect(acos(@as(f32, 0.0)) == acos32(0.0));
    try expect(acos(@as(f64, 0.0)) == acos64(0.0));
}

Source

  pub fn acos(x: anytype) @TypeOf(x) {
    const T = @TypeOf(x);
    return switch (T) {
        f32 => acos32(x),
        f64 => acos64(x),
        else => @compileError("acos not implemented for " ++ @typeName(T)),
    };
}  