mini project

/*Program for calucluating the displacement of a mass on a spring*/
#include <iostream>
#include <cmath>
#include <math.h>
#include <iomanip>
bool valid;
using namespace std;
int main()
{
	// declaring initial values
	double Wn, Wd, K, M, S, A;  // declare variables


	// allow user to input values
	cout << "Enter Value For Initial Displacement: ";
	cin >> A;
	cout << "Enter Value For Spring Constant: ";
	cin >> K;
	cout << "Enter Value For Mass: ";
	cin >> M;

	do
	{
		valid = true;
		cout << "Please enter a dampening ratio: ";
		cin >> S;
		cin.ignore(100, '\n');

		if (S <= 0 || S >= 1)
		{
			valid = false;
			cout << "Dampening ratio must be greater than 0 and less than 1. Try again." << endl;
		}

	} while (!valid);


		//initialise variables
		Wn = sqrt(K / M);
	Wd = Wn * sqrt(1 - pow(S, 2));


	cout << "Therefore";
	cout << "\n";
	cout << "Wn = " << Wn;
	cout << "\n";
	cout << "Wd = " << Wd;
	cout << "\n";
    //double i;
	//double time [100];

	double t = 0;
	double V1;
	V1 = -S * Wn;
	double X(double A, double V1, double Wd, double t);
	{
		return A * (exp(V1 * t)) * cos(Wd*t);
	}

	double results[100];
	for (size_t i = 0; i < 100; ++i)
	{
		double t = (i * 250) / 1000.0;
		results[i] = X(A, V1, Wd, t);
		std::cout << X(A, V1, Wd, t) << "\n";
	}


	//for (i = 0; i < 26; i = i + 0.25);
	//{


		//time[i] = A * (exp(-S * Wn * i)) * cos(Wd*i);
		//cout << time[i] << "*" << endl;

	//}


	//double V2;
	//double V3;


	//i = 2;
	//V2 = exp(V1 * i);
	//V3 = cos (Wd * i);

    //X = A * (exp(V1 * i)) * cos( Wd*i );
	//cout << "V1 is equal to " << V1 << endl;
	//cout << "V2 is equal to " << V2 << endl;
	//cout << "value is equal to " << value << endl;
	//cout << "X is equal to " << X << endl;




	system("Pause");

	return 0;

}