函数名: log10
头文件:<math.h>
函数原型: double log10(double x);
功 能: 求指定数值的以10为底数的对数
参 数: double x 为真数,必须大于0
返回值: 返回以10为底x的对数
公 式: loge x =b
程序例: 求以10为底数x的对数,并将结果输出
#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; }
运行结果:
The common log of 800.687200 is 2.903463
本文固定URL:https://www.dotcpp.com/course/478