COMPLEX(3) BSD Library Functions Manual COMPLEX(3)NAME
complex -- complex floating-point functions
The following functions are complex floating-point values, as arguments and return values. Some use single-precision complex values and some
use double-precision complex values, as indicated. The functions conform to the ISO/IEC 9899:1999(E) standard. The function prototypes can be
found in the header file complex.h.
To use these functions you must add an additional flag to the link step that produces the executable binary. Specify "-lmx".
These are the functions that use single-precision complex values:
These are the functions that use double-precision complex values:
BSD August 15, 2003 BSD
Check Out this Related Man Page
CACOS(3) BSD Library Functions Manual CACOS(3)NAME
cacos, cacosf, cacosh, cacoshf, casin, casinf casinh, casinhf catan, catanf catanh, catanhf -- complex arc trigonometric and hyperbolic func-
Math Library (libm, -lm)
cacos(double complex z);
cacosf(float complex z);
cacosh(double complex z);
cacoshf(float complex z);
casin(double complex z);
casinf(float complex z);
casinh(double complex z);
casinhf(float complex z);
catan(double complex z);
catanf(float complex z);
catanh(double complex z);
catanhf(float complex z);
The cacos(), casin(), and catan() functions compute the principal value of the inverse cosine, sine, and tangent of the complex number z,
respectively. The cacosh(), casinh(), and catanh() functions compute the principal value of the inverse hyperbolic cosine, sine, and tan-
gent. The cacosf(), casinf(), catanf() cacoshf(), casinhf(), and catanhf() functions perform the same operations in float precision.
There is no universal convention for defining the principal values of these functions. The following table gives the branch cuts, and the
corresponding ranges for the return values, adopted by the C language.
Function Branch Cut(s) Range
cacos (-infinity, -1) U (1, infinity) [0, pi]
casin (-infinity, -1) U (1, infinity) [-pi/2, pi/2]
catan (-infinity*I, -i) U (I, infinity*I) [-pi/2, pi/2]
cacosh (-infinity, 1) [-pi*I, pi*I]
casinh (-infinity*I, -i) U (I, infinity*I) [-pi/2*I, pi/2*I]
catanh (-infinity, -1) U (1, infinity) [-pi/2*I, pi/2*I]
SEE ALSO ccos(3), ccosh(3), complex(3), cos(3), math(3), sin(3), tan(3)STANDARDS
These functions conform to ISO/IEC 9899:1999 (``ISO C99'').
BSD May 27, 2013 BSD
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