| catrig.c | 36 __weak_alias(casin, _casin) 90  * The functions casin(h) and cacos(h) are about 2.5 times slower than asinh.
 93  * The code for casinh, casin, cacos, and cacosh comes first.  The code is
 103  *			| casinh, casin, cacos, cacosh |
 355  * casin(z) = reverse(casinh(reverse(z)))
 359 casin(double complex z)  function in typeref:typename:double complex
 367  * cacos(z) = PI/2 - casin(z)
 
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