When using the :Dot command its finding the Orange side in the picture right? meaning the projection of A unto B which is 16 of B?
On google it says to multiply the Orange Side with the Green Side, it gives me a huge number/length of 607, showned below by the dark blue side/length in the picture.
How can I use this length for it to tell how two Vectors compare to each other?
Wikipedia has a decent article on it. The dot product or scalar product comes from multi-variable calculus, and is related to the Law of Cosines. The way that you are doing it is incorrect. The dot product works on vectors only such that
where the vector is <a1, b1>, <a2, b2>, etc… So consider two vectors <2, 4> and <5, 7>. Using the above formula, we end up with
2x4 + 5x7 = 8 + 35 = 43
So the scalar product of the two vectors is 43.
The other product (cross product, vector product) returns a vector that is orthogonal to the two given vectors. It’s useful for projecting into 3D space from a surface.
I used this formula(Geometric) for my Dot Product:
I seen many others use it with 3D vectors
What do you need the dot product for? If you gave more context it would be easier to help.
To see if they are pointing in the same direction, I wanted to try it without using both of their lookVector.
What else can I use the dot product for?
is this a correct analogy for how the DotProduct Result works?:
|B|(Green Side) in the picture is positive.
if the Projection(Yellow Side) were to be negative, then it would be facing the opposite direction/side of |B|(Green Side)
Since a positive times a negative equals a negative?
Try calling .Unit on both vectors before calling the dot product.
A.Unit:Dot(B.Unit) (or, equivalently, A:Dot(B) / (A.Magnitude * B.Magnitude) )
That will give you a number from -1 to 1, where -1 means “pointing in opposite directions” and 1 means “pointing in the same direction”
