C++ Programming/Code/Standard C Library/Functions/sin
sin
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#include <cmath>
double sin( double arg );
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If you don't want cmath you can write sin function it is;
- include <iostream>
using namespace std;
double sin(double x) //sin function {return x-((x*x*x)/6.)+((x*x*x*x*x)/120.);}
int main () {
double a; cin>>a; cout<<"sin("<<a<<")="<<sin(a*(3.14159/180.))<<endl;
return 0;}
The function sin() returns the sine of arg, where arg is given in radians. The return value of sin() will be in the range [-1,1]. If arg is infinite, sin() will return NAN and raise a floating-point exception.