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Diffstat (limited to 'newlib/libm/complex/cacos.c')
| -rw-r--r-- | newlib/libm/complex/cacos.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/newlib/libm/complex/cacos.c b/newlib/libm/complex/cacos.c index 744b4ad8f..d871617e3 100644 --- a/newlib/libm/complex/cacos.c +++ b/newlib/libm/complex/cacos.c @@ -32,6 +32,48 @@ * Marco Atzeri <marco_atzeri@yahoo.it> */ +/* +FUNCTION + <<cacos>>, <<cacosf>>---complex arc cosine + +INDEX + cacos +INDEX + cacosf + +ANSI_SYNOPSIS + #include <complex.h> + double complex cacos(double complex <[z]>); + float complex cacosf(float complex <[z]>); + + +DESCRIPTION + These functions compute the complex arc cosine of <[z]>, + with branch cuts outside the interval [-1, +1] along the real axis. + + <<cacosf>> is identical to <<cacos>>, except that it performs + its calculations on <<floats complex>>. + +RETURNS + @ifnottex + These functions return the complex arc cosine value, in the range + of a strip mathematically unbounded along the imaginary axis + and in the interval [0, pi] along the real axis. + @end ifnottex + @tex + These functions return the complex arc cosine value, in the range + of a strip mathematically unbounded along the imaginary axis + and in the interval [<<0>>, $\pi$] along the real axis. + @end tex + +PORTABILITY + <<cacos>> and <<cacosf>> are ISO C99 + +QUICKREF + <<cacos>> and <<cacosf>> are ISO C99 + +*/ + #include <complex.h> #include <math.h> |