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c:complex.h:cacos [2013/02/03 19:13] 127.0.0.1 external edit |
c:complex.h:cacos [2024/02/16 01:06] (current) |
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====== cacos ====== | ====== cacos ====== | ||
<code c> | <code c> | ||
+ | double complex cacos(double complex z); | ||
</code> | </code> | ||
==== description of cacos ==== | ==== description of cacos ==== | ||
- | cacos is in work by code-reference.com \\ | + | compute the complex arc cosine of z\\ |
- | if you are faster... don't hasitate and add it | + | with branch cuts outside the interval (from -1 to +1) along the real axis. |
<code c> | <code c> | ||
- | no example at the moment | + | #include <stdio.h> |
+ | #include <complex.h> | ||
+ | |||
+ | int main( void ) | ||
+ | { | ||
+ | |||
+ | long double complex zlong=4.2 + I*2.34; | ||
+ | double complex zdouble=(double complex)zlong; | ||
+ | |||
+ | double result; | ||
+ | |||
+ | result = cacos(zdouble); | ||
+ | printf("cacos(%f + I*%f) = %f\n", creal(zdouble), cimag(zdouble), result); | ||
+ | return 0; | ||
+ | } | ||
</code> | </code> | ||
===== output of cacos c example ===== | ===== output of cacos c example ===== | ||
- | no example at the moment | + | cacos(4.200000 + I*2.340000) = 0.517664 |