From ed36dbbd9c9dc21b2eebae1b31586fea1c6b51c3 Mon Sep 17 00:00:00 2001 From: Andrew Kelley Date: Wed, 25 Sep 2019 23:35:41 -0400 Subject: mv std/ lib/ that's all this commit does. further commits will fix cli flags and such. see #2221 --- lib/std/math/complex/conj.zig | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 lib/std/math/complex/conj.zig (limited to 'lib/std/math/complex/conj.zig') diff --git a/lib/std/math/complex/conj.zig b/lib/std/math/complex/conj.zig new file mode 100644 index 0000000000..bd71ca3c06 --- /dev/null +++ b/lib/std/math/complex/conj.zig @@ -0,0 +1,18 @@ +const std = @import("../../std.zig"); +const testing = std.testing; +const math = std.math; +const cmath = math.complex; +const Complex = cmath.Complex; + +/// Returns the complex conjugate of z. +pub fn conj(z: var) Complex(@typeOf(z.re)) { + const T = @typeOf(z.re); + return Complex(T).new(z.re, -z.im); +} + +test "complex.conj" { + const a = Complex(f32).new(5, 3); + const c = a.conjugate(); + + testing.expect(c.re == 5 and c.im == -3); +} -- cgit v1.2.3