Sine Calculator

#include <iostream>
#include <cmath>
#include <iomanip>

using namespace std;

double Sin(double);
double Fact(double);
double ConvertTo(double);

int main()
{
    double degrees;
    cin >> degrees;

    if(degrees > 180)
    {
        degrees = ConvertTo(degrees);
    }

    if(degrees < 0)
    {
        degrees = degrees*(-1);
    }

    double radians = (degrees/180)*3.14159;

    cout << setprecision(7) << Sin(radians) << endl;
}

double Sin(double number)
{
    double sin = 0;

    cout << fixed;
    for(double i = 0; i < 10; i++)
    {
        sin += ((pow(-1, i))*(pow(number,(2*i) + 1)))/(Fact((2*i) + 1));
        //cout << sin << endl;
    }

    sin = abs(sin);

    sin = sin*sin; //without this it would only print sine

    return sin;
}

double Fact(double number) //factoriel algorithm function
{
      double counter = 1;

      for(double i = 1; i <= number; i++)
    {
        counter = counter * i;

        if(counter >= INT_MAX)
        {
            break;
        }
    }
    return counter;
}

double ConvertTo(double number) //converts degrees to radians
{
    int num = (int)number/180.0;
    number = number - (num*180);
    number = (double)number;

    return number;
}

/*
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Calculus II Math Exercise - Degrees to Arc Length
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*/