C語言輔導(dǎo)：C語言標(biāo)準(zhǔn)庫math.h

1 三角函數(shù)
    double sin (double);
    double cos (double);
    double tan (double);
    2 反三角函數(shù)
    double asin (double); 結(jié)果介于[-PI/2, PI/2]
    double acos (double); 結(jié)果介于[0, PI]
    double atan (double); 反正切(主值), 結(jié)果介于[-PI/2, PI/2]
    double atan2 (double, double); 反正切(整圓值), 結(jié)果介于[-PI/2, PI/2]
    3 雙曲三角函數(shù)
    double sinh (double);
    double cosh (double);
    double tanh (double);
    4 指數(shù)與對(duì)數(shù)
    double exp (double);
    double pow (double, double);
    double sqrt (double);
    double log (double); 以e為底的對(duì)數(shù)
    double log10 (double);
    5 取整
    double ceil (double); 取上整
    double floor (double); 取下整
    6 絕對(duì)值
    double fabs (double);
    7 標(biāo)準(zhǔn)化浮點(diǎn)數(shù)
    double frexp (double f, int *p); 標(biāo)準(zhǔn)化浮點(diǎn)數(shù), f = x * 2^p, 已知f求x, p ( x介于[0.5, 1] )
    double ldexp (double x, int p); 與frexp相反, 已知x, p求f
    8 取整與取余
    double modf (double, double*); 將參數(shù)的整數(shù)部分通過指針回傳, 返回小數(shù)部分
    double fmod (double, double); 返回兩參數(shù)相除的余數(shù)