下面是一个关于数学运算的简单实例:
实例
#include<iostream>#include<cmath>usingnamespacestd; intmain(){ // 数字定义 short s = 10; int i = -1000; long l = 100000; float f = 230.47; doubled = 200.374; // 数学运算 cout << "sin(d) :" << sin(d) << endl; cout << "abs(i) :" << abs(i) << endl; cout << "floor(d) :" << floor(d) << endl; cout << "sqrt(f) :" << sqrt(f) << endl; cout << "pow( d, 2) :" << pow(d, 2) << endl; return0;}
当上面的代码被编译和执行时,它会产生下列结果:
sin(d):-0.634939
abs(i) :1000
floor(d):200
sqrt(f):15.1812
pow( d,2):40149.7