C++中的函数汇总

double sin (double);double cos (double);double tan (double);

double asin (double); 结果介于[-PI/2, PI/2]double acos (double); 结果介于[0, PI]double atan (double); 反正切(主值), 结果介于[-PI/2, PI/2]double atan2 (double, double); 反正切(整圆值), 结果介于[-PI/2, PI/2]

double sinh (double);double cosh (double);double tanh (double);

double exp (double);double pow (double, double);double sqrt (double);double log (double); 以e为底的对数double log10 (double);log2 (double);//这个函数是有的

double ceil (double); 取上整double floor (double); 取下整

double fabs (double);

double frexp (double f, int *p); 标准化浮点数, f = x * 2^p, 已知f求x, p ( x介于[0.5, 1] )double ldexp (double x, int p); 与frexp相反, 已知x, p求f

double modf (double, double*); 将参数的整数部分通过指针回传, 返回小数部分double fmod (double, double); 返回两参数相除的余数source: 《C & C++ Code Capsules》

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