22 lines
535 B
Zig
22 lines
535 B
Zig
const std = @import("../../index.zig");
|
|
const debug = std.debug;
|
|
const math = std.math;
|
|
const cmath = math.complex;
|
|
const Complex = cmath.Complex;
|
|
|
|
pub fn acosh(z: var) Complex(@typeOf(z.re)) {
|
|
const T = @typeOf(z.re);
|
|
const q = cmath.acos(z);
|
|
return Complex(T).new(-q.im, q.re);
|
|
}
|
|
|
|
const epsilon = 0.0001;
|
|
|
|
test "complex.cacosh" {
|
|
const a = Complex(f32).new(5, 3);
|
|
const c = acosh(a);
|
|
|
|
debug.assert(math.approxEq(f32, c.re, 2.452914, epsilon));
|
|
debug.assert(math.approxEq(f32, c.im, 0.546975, epsilon));
|
|
}
|