来自宋希光的问题
c语言能直接输入三角函数符号嘛比如sincos
c语言能直接输入三角函数符号嘛比如sincos
1回答
2020-04-24 11:43
c语言能直接输入三角函数符号嘛比如sincos
c语言能直接输入三角函数符号嘛比如sincos
可以,是标准C函数,语法如下
#include
doublesin(doublex);
doublecos(doublex);
详细描述:
NAME
sin,sinf,sinl-sinefunction
SYNOPSIS
#include
doublesin(doublex);
floatsinf(floatx);
longdoublesinl(longdoublex);
Linkwith-lm.
DESCRIPTION
Thesin()functionreturnsthesineofx,wherexisgiveninradians.
RETURNVALUE
Thesin()functionreturnsavaluebetween-1and1.
CONFORMINGTO
SVr4,4.3BSD,C89.ThefloatandlongdoublevariantsareC99requirements.
SEEALSO
acos(3),asin(3),atan(3),atan2(3),csin(3),cos(3),tan(3)