public static Vector3d linearCombination(
double a1, Vector3d v1, double a2, Vector3d v2, double a3, Vector3d v3) {
Vector3d v =
new Vector3d(
(a1 * v1.getX()) + (a2 * v2.getX()) + (a3 * v3.getX()),
(a1 * v1.getY()) + (a2 * v2.getY()) + (a3 * v3.getY()),
(a1 * v1.getZ()) + (a2 * v2.getZ()) + (a3 * v3.getZ()));
return v;
}
public static Vector3d linearCombination(double a1, Vector3d v1, double a2, Vector3d v2) {
return new Vector3d(
(a1 * v1.getX()) + (a2 * v2.getX()),
(a1 * v1.getY()) + (a2 * v2.getY()),
(a1 * v1.getZ()) + (a2 * v2.getZ()));
}