»ØÒäC¹ÅÀϵÄmath.h¿â
FreeEIM
»ØÒäC¹ÅÀϵÄmath.h¿â
¸ÅÊö£º
¡¡¡¡math.hÖÐΪÎÒÃÇÌṩÁËÈý½Çº¯ÊýÊýÖµÔËËã¡¢Ö¸Êý¶ÔÊýÔËËã¡¢¾ø¶ÔÖµ¡¢Æ½·½Öµ¡¢ÒÔ¼°Ò»Ð©»ù±¾µÄÊýÖµ´¦Àí¡£
º¯Êý£ºsin
¹¦ÄÜ£º¼ÆË㻡¶ÈµÄÕýÏÒÖµ¡£
ʹÓÃ˵Ã÷£ºsin(x)£¬xΪ´«ÈëµÄ»¡¶ÈÖµ¡£
º¯Êý£ºcos
¹¦ÄÜ£º¼ÆË㻡¶ÈµÄÓàÏÒÖµ¡£
ʹÓÃ˵Ã÷£ºcos(x)£¬xΪ´«ÈëµÄ»¡¶ÈÖµ¡£
º¯Êý£ºtan
¹¦ÄÜ£º¼ÆË㻡¶ÈµÄÕýÇÐÖµ¡£
ʹÓÃ˵Ã÷£ºtan(x)£¬xΪ´«ÈëµÄ»¡¶ÈÖµ¡£
º¯Êý£ºsinh
¹¦ÄÜ£º¼ÆË㻡¶ÈµÄË«ÇúÕýÏÒÖµ¡£
ʹÓÃ˵Ã÷£ºsinh(x)£¬xΪ´«ÈëµÄ»¡¶ÈÖµ¡£
º¯Êý£ºcosh
¹¦ÄÜ£º¼ÆË㻡¶ÈµÄË«ÇúÓàÏÒÖµ¡£
ʹÓÃ˵Ã÷£ºcosh(x)£¬xΪ´«ÈëµÄ»¡¶ÈÖµ¡£
º¯Êý£ºtanh
¹¦ÄÜ£º¼ÆË㻡¶ÈµÄË«ÇúÕýÇÐÖµ¡£
ʹÓÃ˵Ã÷£ºtanh(x)£¬xΪ´«ÈëµÄ»¡¶ÈÖµ¡£
º¯Êý£ºasin
¹¦ÄÜ£º¼ÆË㻡¶ÈµÄ·´ÕýÏÒÖµ¡£
ʹÓÃ˵Ã÷£ºasin(x)£¬xΪ´«ÈëµÄ»¡¶ÈÖµ¡£
º¯Êý£ºacos
¹¦ÄÜ£º¼ÆË㻡¶ÈµÄ·´ÓàÏÒÖµ¡£
ʹÓÃ˵Ã÷£ºacos(x)£¬xΪ´«ÈëµÄ»¡¶ÈÖµ¡£
º¯Êý£ºatan
¹¦ÄÜ£º¼ÆË㻡¶ÈµÄ·´ÕýÇÐÖµ¡£
ʹÓÃ˵Ã÷£ºatan(x)£¬xΪ´«ÈëµÄ»¡¶ÈÖµ¡£
º¯Êý£ºatan2
¹¦ÄÜ£º¼ÆËãÁ½¸ö¸¡µãÊýÀàÐÍÖµÖ®±ÈµÄ·´ÕýÇÐÖµ¡£
ʹÓÃ˵Ã÷£ºatan2(x,y)£¬¸Ãº¯Êý»á¼ÆËã³öx/yµÄ·´ÕýÇÐÖµ¡£
º¯Êý£ºlog
¹¦ÄÜ£º¼ÆË㸡µãÊýµÄ×ÔÈ»¶ÔÊýÖµ¡£
ʹÓÃ˵Ã÷£ºlog(x)£¬¼ÆËãÒÔeΪµ×µÄ¶ÔÊý¡£
º¯Êý£ºlog10
¹¦ÄÜ£ºÒÔ10Ϊµ×À´¼ÆËã¶ÔÊýÖµ¡£
ʹÓÃ˵Ã÷£ºlog10(x)£¬¼ÆËãÒÔ10Ϊµ×µÄ¶ÔÊý¡£
º¯Êý£ºpow
¹¦ÄÜ£º¼ÆËã³öijÊýµÄij´Î·½Öµ¡£
ʹÓÃ˵Ã÷£ºpow(x,y)£¬¼ÆËãxµÄy´Î·½¡£
º¯Êý£ºexp
¹¦ÄÜ£º¼ÆË㸡µãΪÊýµÄÖ¸Êýº¯ÊýÖµ¡£
ʹÓÃ˵Ã÷£ºexp(x)£¬¼ÆËãeµÄx´Î·½¡£
º¯Êý£ºfrexp
¹¦ÄÜ£ºµ÷Õû¸¡µã±äÁ¿£¬½«Ô±äÁ¿µÄÊýÖµ²¿·Öµ÷Õûµ½½éÓÚ0.5ºÍ1Ö®¼ä¡£
ʹÓÃ˵Ã÷£ºdouble y = frexp(double x, int *expptr)£¬º¯Êýfrexp½«double xµÄÊýÖµ²¿·Öµ÷Õû³É½éÓÚ0.5ºÍ1Ö®¼ä£¬½«µ÷ÕûºÃµÄÐÂÊýÖµ²¿·Ö»Ø´«¸øy£¬¶øÖ¸Êý²¿·Ö½«´«¸øÖ¸ÕëexpptrËùÖ¸µÄλÖã¬Ê¹x=y*(2^expptr)¡£Èçx=10.5428£¬y½«Îª0.658925£¬*expptr½«Îª4£¬ÓÐËãʽ10.5428=0.658925*(2^4)¡£
º¯Êý£ºldexp
¹¦ÄÜ£º¸ù¾ÝËù¸øÓèµÄÊýÖµ²¿·ÖxºÍÖ¸Êý²¿·Öy¼ÆËã³ö¸¡µãÊýx*(2^y)µÄÖµ¡£
ʹÓÃ˵Ã÷£ºldexp(double x, int y)£¬½«·µ»Øx*(2^y)µÄÖµ¡£
º¯Êý£º_cabs
¹¦ÄÜ£ºÈ¡µÃ¸´Êý½á¹¹µÄ¾ø¶ÔÖµ¡£
ʹÓÃ˵Ã÷£ºdouble y = _cabs(struct _complex x)£¬É踴ÊýxµÄʵÊý²¿·ÖΪa£¬ÐéÊý²¿·ÖΪb£¬Ôòcabs½«»á¼ÆËãx.aµÄƽ·½¼Óx.bµÄƽ·½µÄºÍ¿ª¸ùºÅµÄÖµ¡£
º¯Êý£ºfabs
¹¦ÄÜ£º¼ÆË㸡µãÊý±äÁ¿µÄ¾ø¶ÔÖµ¡£
ʹÓÃ˵Ã÷£ºfabs(x)£¬¼ÆËãxµÄ¾ø¶ÔÖµ¡£
º¯Êý£ºhypot
¹¦ÄÜ£
Ïà¹ØÎĵµ£º
c/c++ÃæÊÔÌâ
¡¡¡¡±¾ÎĵÄд×÷Ä¿µÄ²¢²»ÔÚÓÚÌṩC/C++³ÌÐòÔ±ÇóÖ°ÃæÊÔÖ¸µ¼£¬¶øÖ¼ÔÚ´Ó¼¼ÊõÉÏ·ÖÎöÃæÊÔÌâµÄÄÚº¡£ÎÄÖеĴó¶àÊýÃæÊÔÌâÀ´×Ô¸÷´óÂÛ̳£¬²¿·ÖÊÔÌâ½â´ðÒ²²Î¿¼ÁËÍøÓѵÄÒâ¼û¡£
¡¡¡¡Ðí¶àÃæÊÔÌâ¿´ËƼòµ¥£¬È´ÐèÒªÉîºñµÄ»ù±¾¹¦²ÅÄܸø³öÍêÃÀµÄ½â´ð¡£ÆóÒµÒªÇóÃæÊÔÕßдһ¸ö×î¼òµ¥µÄstrcpyº¯Êý¶¼¿É¿´³öÃæÊÔÕßÔÚ¼¼ÊõÉϾ¿¾¹´ïµ½ÁËÔ ......
C/C++ÄÚ´æÓëÔËÐÐʱÉîÈëÑо¿ [×÷ÕßJean.Love]
-----------------------------------------------------------------------------------
(Ò»)ÕûÊý·ûºÅµÄÏÝÚå
(¶þ)¸¡µãÊýµÄ±¾ÖÊ
(Èý)¶ÑÕ»µÄÄÚ´æ¹ÜÀí½á¹¹
(ËÄ)·ûºÅ½âÎö
(Îå)¶ÔÆëºÍ×ÜÏß´íÎó
(Áù)º¯ÊýÖ¸Õë
(Æß)Ð麯ÊýµÄÊ ......
¸ßÖÊÁ¿C++/C±à³ÌÖ¸ÄÏ
Îļþ״̬
[ ] ²Ý¸åÎļþ
[√] ÕýʽÎļþ
[ ] ¸ü¸ÄÕýʽÎļþ Îļþ±êʶ£º
µ±Ç°°æ±¾£º 1.0
×÷ Õߣº ÁÖÈñ ²©Ê¿
Íê³ÉÈÕÆÚ£º 2001Äê7ÔÂ24ÈÕ
°æ ±¾ Àú Ê·
°æ±¾/״̬ ×÷Õß ²ÎÓëÕß ÆðÖ¹ÈÕÆÚ ±¸×¢
V ......
CRT (C run-time library)
Ò» ²úÉú
ÔËÐÐʱ¿âÊdzÌÐòÔÚÔËÐÐʱËùÐèÒªµÄ¿âÎļþ£¬Í¨³£ÒÔLIB»òDLLÐÎʽÌṩ¡£
CÔËÐÐʱ¿â¾ÍÊÇC run-time library£¬µ®ÉúÓÚ20ÊÀ¼Í70Äê´ú£¬ÊÇC¶ø·ÇC++ÓïÑÔÊÀ½çµÄ¸ÅÄC³ÌÐòÔËÐÐʱÐèÒªÕâЩ¿âÖеĺ¯Êý¡£
C ÓïÑÔÊÇËùνµÄ“СÄں˔ÓïÑÔ£¬¾ÍÆäÓïÑÔ±¾ÉíÀ´ËµºÜС£¨²»¶àµÄ¹Ø¼ü×Ö£¬³ÌÐòÁ÷³Ì¿ØÖÆ£ ......