1ccos(3)                    Library Functions Manual                    ccos(3)
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NAME

6       ccos, ccosf, ccosl - complex cosine function
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LIBRARY

9       Math library (libm, -lm)
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SYNOPSIS

12       #include <complex.h>
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14       double complex ccos(double complex z);
15       float complex ccosf(float complex z);
16       long double complex ccosl(long double complex z);
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DESCRIPTION

19       These functions calculate the complex cosine of z.
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21       The complex cosine function is defined as:
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23           ccos(z) = (exp(i * z) + exp(-i * z)) / 2
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ATTRIBUTES

26       For  an  explanation  of  the  terms  used  in  this  section,  see at‐
27       tributes(7).
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29       ┌────────────────────────────────────────────┬───────────────┬─────────┐
30       │Interface                                   │ Attribute     │ Value   │
31       ├────────────────────────────────────────────┼───────────────┼─────────┤
32       │ccos(), ccosf(), ccosl()                    │ Thread safety │ MT-Safe │
33       └────────────────────────────────────────────┴───────────────┴─────────┘
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STANDARDS

36       C11, POSIX.1-2008.
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HISTORY

39       glibc 2.1.  C99, POSIX.1-2001.
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SEE ALSO

42       cabs(3), cacos(3), csin(3), ctan(3), complex(7)
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46Linux man-pages 6.05              2023-07-20                           ccos(3)