cacosh

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Version: 2002-07-28 (openSuse - 09/10/07)

Section: 3 (Bibliothèques de fonctions)

Sommaire

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cacosh, cacoshf, cacoshl - Ê£ÁÇ¿ô¤ÎµÕÁжÊÀþ;¸¹ (arc hyperbolic cosine)

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#include <complex.h>

double complex cacosh(double complex z);
float complex cacoshf(float complex z);
long double complex cacoshl(long double complex z);

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cacosh() ´Ø¿ô¤ÏÊ£ÁÇ¿ô¤Î acosh() ¤ò·×»»¤¹¤ë¡£ y = cacosh(z) ¤Ê¤é¤Ð¡¢ z = ccosh(y) ¤¬À®Î©¤¹¤ë¡£ y ¤ÎµõÉô¤ÎÃͤ϶è´Ö [-pi,pi] ¤«¤éÁªÂò¤µ¤ì¡¢ y ¤Î¼ÂÉô¤ÎÃͤÏÈóÉé¤ÎÃͤ¬ÁªÂò¤µ¤ì¤ë¡£

¼¡¤Î´Ø·¸¤¬À®Î©¤¹¤ë: cacosh(z) = (0.5) * clog((1 + z) / (1 - z))

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C99

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acosh(3), cabs(3), cimag(3), complex(7)