As we all know, the dot product of 2 vectors must be a scalar quantity. I have two vectors P and Z and they both have 6138 data points. So i converted them to Matrix of dimension 6138x3. Now when I used dot(P,Z) I am getting a 1x3 matrix. My question is how can I get the scalar quantity from this? Or Is there other way to the dot product of these two vectors using MATLAB.