/// <summary>
/// x^2 + x + C = 0
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <param name="c"></param>
/// <returns>Object with both values</returns>
public Qaudratic SolveQuadratic(decimal a, decimal b, decimal c)
{
decimal derivitive = (b * b) - (Convert.ToDecimal(4) * a * c);
decimal rootDerivitive = Utils.SquareRoot(derivitive);
Qaudratic quad = new Qaudratic();
if (rootDerivitive <= 0)
{
quad.success = false;
}
else
{
decimal x1 = (-b + rootDerivitive) / (Convert.ToDecimal(2) * a);
decimal x2 = (-b - rootDerivitive) / (Convert.ToDecimal(2) * a);
quad.success = true;
quad.answer1 = Math.Round(x1, 3);
quad.answer2 = Math.Round(x2, 3);
}
return(quad);
}
public static string GetTime(string distance, string initialVelocity, string acceleration)
{
decimal s = -Convert.ToDecimal(distance);
decimal U = Convert.ToDecimal(initialVelocity);
decimal a = Convert.ToDecimal(acceleration);
if (a == 0)
{
decimal answer = -s / U;
return($"{answer} s");
}
else
{
UtilsNS helper = new UtilsNS();
Qaudratic quad = helper.SolveQuadratic(a, U, s);
if (quad.success == false)
{
return("Result is Imaginary");
}
else
{
if (quad.answer1 == quad.answer2)
{
return($"{quad.answer1} s");
}
else if (quad.answer1 <= 0)
{
return($"{quad.answer2} s");
}
else if (quad.answer2 <= 0)
{
return($"{quad.answer1} s");
}
else
{
return($"{quad.answer1} s OR {quad.answer2} s");
}
}
}
}
