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catan
Langue: ja
Version: 2002-07-28 (openSuse - 09/10/07)
Section: 3 (Bibliothèques de fonctions)
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catan, catanf, catanl - Ê£ÁÇ¿ô¤ÎµÕÀµÀÜ (arc tangent)½ñ¼°
#include <complex.h>double complex catan(double complex z);
float complex catanf(float complex z);
long double complex catanl(long double complex z);
-lm ¤Ç¥ê¥ó¥¯¤¹¤ë¡£
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catan() ´Ø¿ô¤ÏÊ£ÁÇ¿ô¤Î atan() ¤ò·×»»¤¹¤ë¡£ y = catan(z) ¤Ê¤é¤Ð¡¢ z = ctan(y) ¤¬À®Î©¤¹¤ë¡£ y ¤Î¼ÂÉô¤ÎÃͤ϶è´Ö [-pi/2,pi/2] ¤«¤éÁªÂò¤µ¤ì¤ë¡£¼¡¤Î´Ø·¸¤¬À®Î©¤¹¤ë: catan(z) = 1 / 2i clog((1 + iz) / (1 - iz))
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