二十五岁时我们都一样愚蠢、多愁善感，喜欢故弄玄虚，可如果不那样的话，五十岁时也就不会如此明智。
标题：C库函数 cosh()
C库函数 cosh()
#include <stdio.h> #include <math.h> int main () { double x; x = 0.5; printf("The hyperbolic cosine of %lf is %lf\n", x, cosh(x)); x = 1.0; printf("The hyperbolic cosine of %lf is %lf\n", x, cosh(x)); x = 1.5; printf("The hyperbolic cosine of %lf is %lf\n", x, cosh(x)); return(0); }
