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-rw-r--r--std/math/complex/sinh.zig7
1 files changed, 7 insertions, 0 deletions
diff --git a/std/math/complex/sinh.zig b/std/math/complex/sinh.zig
index 0b656e5354..6286d8447f 100644
--- a/std/math/complex/sinh.zig
+++ b/std/math/complex/sinh.zig
@@ -1,3 +1,9 @@
+// Ported from musl, which is licensed under the MIT license:
+// https://git.musl-libc.org/cgit/musl/tree/COPYRIGHT
+//
+// https://git.musl-libc.org/cgit/musl/tree/src/complex/csinhf.c
+// https://git.musl-libc.org/cgit/musl/tree/src/complex/csinh.c
+
const std = @import("../../std.zig");
const testing = std.testing;
const math = std.math;
@@ -6,6 +12,7 @@ const Complex = cmath.Complex;
const ldexp_cexp = @import("ldexp.zig").ldexp_cexp;
+/// Returns the hyperbolic sine of z.
pub fn sinh(z: var) @typeOf(z) {
const T = @typeOf(z.re);
return switch (T) {