1 算術(shù)運(yùn)算函數(shù)
1.1 rand()函數(shù):產(chǎn)生隨機(jī)數(shù)
1.2 abs()函數(shù)/labs()函數(shù):整數(shù)的絕對(duì)值
1.3 fabs()/fabsf()/fabsl()函數(shù):浮點(diǎn)數(shù)的絕對(duì)值
1.4 floor()/floorf()/floorl()函數(shù):向下取整
1.5 ceil()/ceilf()/ceill()函數(shù):向上取整
1.6 round()/roundf()/roundl()函數(shù):四舍五入
1.7 sqrt()/sqrtf()/sqrtl()函數(shù):求平方根
1.8 fmax()/fmaxf()/fmaxl()函數(shù):求最大值
1.9 fmin()/fminf()/fminl()函數(shù):求最小值
1.10 hypot()/hypotf()/hypotl()函數(shù):求直角三角形斜邊的長(zhǎng)度
1.11 fmod()/fmodf()/fmodl()函數(shù):求兩數(shù)整除后的余數(shù)
1.12 modf()/modff()/modfl()函數(shù):浮點(diǎn)數(shù)分解為整數(shù)和小數(shù)
1.13 frexp()/frexpf()/frexpl()函數(shù):浮點(diǎn)數(shù)分解尾數(shù)和以二為底的指數(shù)
2 三角運(yùn)算函數(shù)
2.1 sin()/sinf()/sinl()/函數(shù):求正弦值
2.2 sinh()/sinhf()/sinhl()函數(shù):求雙曲正弦值
2.3 cos()/cosf()/cosl()函數(shù):求余弦值
2.4 cosh()/coshf()/coshl()函數(shù):求雙曲余弦值
2.5 tan()/tanf()/tanl()函數(shù):求正切值
2.6 tanh()/tanhf()/tanhl()函數(shù):求雙曲正切值
3 反三角運(yùn)算
3.1 asin()/asinf()/asinl()函數(shù):求反正弦值
3.2 asinh()/asinhf()/asinhl()函數(shù):求反雙曲正弦值
3.3 acos()/acosf()/acosl()函數(shù):求反余弦值
3.4 acosh()/acoshf()/acoshl()函數(shù):求反雙曲余弦值
3.5 atan()/atanf()/atanl()函數(shù):求反正切值
3.6 atan2()/atan2f()/atanl()函數(shù):求坐標(biāo)值的反正切值
3.7 atanh()/atanhf()/atanhl()函數(shù):求反雙曲正切值
4 指數(shù)和對(duì)數(shù)運(yùn)算
4.1 pow()/powf()/powl函數(shù):求n的m次方的值
4.2 exp()/expf()/expl()函數(shù):求e的x次方的值
4.3 exp2()/exp2f()/exp2l()函數(shù):2的x的次方的值
4.4 log()/logf()/logl()函數(shù):求以e為底的對(duì)數(shù)值
4.5 log10()/log10f()/log10l()函數(shù):求以10為底的對(duì)數(shù)值