/// <summary>
/// returns the distance beteween the two vectors. Will always be positive.Same as minus(v).mag().
/// </summary>
/// <param name="v"></param>
/// <returns></returns>
// Useful Functions
public double dist(JJVector v)
{
var dx = mX - v.x();
var dy = mY - v.y();
return(Math.Sqrt(dx * dx + dy * dy));
}
public JJVector plus(JJVector v, JJVector result)
{
result.set(mX + v.x(), mY + v.y(), mT + v.t());
return(result);
}
public JJVector minus(JJVector v, JJVector result)
{
result.set(mX - v.x(), mY - v.y(), mT - v.t());
return(result);
}
/// <summary> /// /// </summary> /// <param name="v"></param> /// <returns>returns this . v, i.e. the dot product of this and v.</returns> public double dot(JJVector v) => mX *v.x() + mY * v.y();