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ACOSH
Section: Linux Programmer's Manual (3)Updated: June 13, 1993
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acosh - µÕÁжÊÀþ;¸¹¡Ê¥¢¡¼¥¯¥Ï¥¤¥Ñ¥Ü¥ê¥Ã¥¯¥³¥µ¥¤¥ó¡Ë´Ø¿ô½ñ¼°
#include <math.h> double acosh(double x);
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acosh() ´Ø¿ô¤Ï x ¤ÎµÕÁжÊÀþ;¸¹¡Ê¥¢¡¼¥¯¥Ï¥¤¥Ñ¥Ü¥ê¥Ã¥¯¥³¥µ¥¤¥ó¡Ë¤ò ·×»»¤¹¤ë¡£ ¤¹¤Ê¤ï¤Á¡¢¤½¤ÎÁжÊÀþ;¸¹¡Ê¥Ï¥¤¥Ñ¥Ü¥ê¥Ã¥¯¥³¥µ¥¤¥ó¡Ë¤¬ x ¤Ë ¤Ê¤ë¤è¤¦¤ÊÃͤǤ¢¤ë¡£ ¤â¤· x ¤¬ 1.0 ¤è¤ê¾®¤µ¤±¤ì¤Ð acosh() ¤Ï not-a-number (NaN) ¤ò ÊÖ¤·¡¢ errno ¤¬ÀßÄꤵ¤ì¤ë¡£¥¨¥é¡¼
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SVID 3, POSIX, BSD 4.3, ISO 9899´ØÏ¢¹àÌÜ
asinh(3), atanh(3), cosh(3), sinh(3), tanh(3)