distanceToSquared method
Squared distance from this to arg
Implementation
double distanceToSquared(Vector4 arg) {
final Float64List argStorage = arg._v4storage;
final double dx = _v4storage[0] - argStorage[0];
final double dy = _v4storage[1] - argStorage[1];
final double dz = _v4storage[2] - argStorage[2];
final double dw = _v4storage[3] - argStorage[3];
return dx * dx + dy * dy + dz * dz + dw * dw;
}