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ulib
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musl
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src
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complex
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cacosh.c
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#include
"libm.h"
/* acosh(z) = i acos(z) */
double
complex cacosh
(
double
complex z
)
{
z
=
cacos
(
z
);
return
CMPLX
(-
cimag
(
z
),
creal
(
z
));
}