log10
函数名: log10
功 能: 对数函数log 用 法: double log10(double x); 程序例: #include <math.h> #include <stdio.h> int main(void) { double result; double x = 800.6872; result = log10(x); printf("The common log of %lf is %lf\n", x, result); return 0; }