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Message-ID: <20240310200040.GF1884416@port70.net>
Date: Sun, 10 Mar 2024 21:00:40 +0100
From: Szabolcs Nagy <nsz@...t70.net>
To: musl@...ts.openwall.com
Subject: [PATCH] complex: fix comment in cacosh
The principal experssions defining acosh and acos are such that
acosh(z) = +-i acos(z)
where the + is only true on the Im(z)>0 half of the complex plane
(and partly on Im(z)==0 depending on number representation).
fix the comment without expanding on the details.
---
src/complex/cacosh.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/complex/cacosh.c b/src/complex/cacosh.c
index 76127f75..586328ce 100644
--- a/src/complex/cacosh.c
+++ b/src/complex/cacosh.c
@@ -1,6 +1,6 @@
#include "complex_impl.h"
-/* acosh(z) = i acos(z) */
+/* acosh(z) = +-i acos(z) */
double complex cacosh(double complex z)
{
--
2.43.0
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