funtc13b.dat

指令字典2005里面可以方便的查找一些函数

log

#include <math.h>
#include <stdio.h>
int main(void)
{
    double result;
    double x = 8.6872;
    result = log(x);
    printf("The natural log of %lf is %lf
", x, result);
    return 0;
}