1CCOS(3) complex math routines CCOS(3)
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4
NAME
6ccos, ccosf, ccosl - complex cosine function
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SYNOPSIS
9#include <complex.h>
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double complex ccos(double complex z);
12float complex ccosf(float complex z);
13long double complex ccosl(long double complex z);
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Link with -lm.
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DESCRIPTION
18The complex cosine function ccos(z) is defined as
19(exp(i*z)+exp(-i*z))/2.
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CONFORMING TO
22C99
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SEE ALSO
25cabs(3), csin(3), ctan(3), complex(7)
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2002-07-28 CCOS(3)