zig

commit ff23efe9fa46f6ae568ae6d335fc0fd058064aa1 (tree)
parent 0c70d9c71455122c6d67777c216e47133b8f8416
Author: expikr <77922942+expikr@users.noreply.github.com>
Date:   Wed,  8 Nov 2023 04:10:43 +0800

Update pow.zig

Diffstat:
M
lib/std/math/complex/pow.zig
 | 
8
+++-----

1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/lib/std/math/complex/pow.zig b/lib/std/math/complex/pow.zig
@@ -5,10 +5,8 @@ const cmath = math.complex;
 const Complex = cmath.Complex;
 
 /// Returns z raised to the complex power of c.
-pub fn pow(comptime T: type, z: T, c: T) T {
-    const p = cmath.log(z);
-    const q = c.mul(p);
-    return cmath.exp(q);
+pub fn pow(z: anytype, s: anytype) Complex(@TypeOf(z.re, z.im, s.re, s.im)) {
+    return cmath.exp(cmath.log(z).mul(s));
 }
 
 const epsilon = 0.0001;
@@ -16,7 +14,7 @@ const epsilon = 0.0001;
 test "complex.cpow" {
     const a = Complex(f32).init(5, 3);
     const b = Complex(f32).init(2.3, -1.3);
-    const c = pow(Complex(f32), a, b);
+    const c = pow(a, b);
 
     try testing.expect(math.approxEqAbs(f32, c.re, 58.049110, epsilon));
     try testing.expect(math.approxEqAbs(f32, c.im, -101.003433, epsilon));