public static double[,] Distance(this Space space, Segment sa, Segment sb)
{
var result = new double[sa.Length, sb.Length];
for (var a = 0; a < sa.Length; a++)
{
for (var b = 0; b < sb.Length; b++)
{
result[a, b] = space.Distance(sa.Offset + a, sb.Offset + b);
}
}
return(result);
}
public static double Force(this Space space, int a, int b) => space.Charge(a, b) / space.Distance(a, b);
public static double Force(this Space space, int a) => space.Charge(a) / space.Distance(a);