CACOS
Section: complex math routines (3)
Updated: 2002-07-28
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NAME
cacos, cacosf, cacosl - complex arc cosine
SYNOPSIS
#include <complex.h>
double complex cacos(double complex z);
float complex cacosf(float complex z);
long double complex cacosl(long double complex z);
Link with -lm.
DESCRIPTION
The cacos() function calculates the complex acos().
If y = cacos(z), then z = ccos(y).
The real part of y is chosen in the interval [0,pi].
One has cacos(z) = -i clog(z+csqrt(z*z-1)).
CONFORMING TO
C99
SEE ALSO
ccos(3),
clog(3),
complex(5)
Index
- NAME
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- SYNOPSIS
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- DESCRIPTION
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- CONFORMING TO
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- SEE ALSO
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