Multiply 3x3 and 3x1 vectors in a loop

I am trying to multiply a 3x3 vector (matrix) with a 3x1 vector in a loop. The 3x1 vectors are stored variables and I would like the loop this until all 3x1 vectors are loaded. I am fairly new and this is what I have so far (editted to by generic):

% Define 3x3
V1= [1 0 0; 0 1 0 ; 0 0 1]
% load 3x1 vectors from mat file and create a loop
for k = 1:3
    load(['vectors.mat'])
    V2Array=vv(k, :)
end
% Multiply 3x3 and 3x1 vectors
calc = V1*V2
Results = sprintf(  '%s%d', 'Results')

[Matt J]

It would be better if you were to attach vectors.mat, so we that could see precisely what it contains.

Also, your 'V2Array' is never used in the code you've presented. My impression is that V2 and V2Array are supposed to be the same thing, but that's guesswork 0on my part.

[sharonb]

the mat file contains row vectors (3) and is outputted as vv. I changed the name to vectors.mat. In additional, I thought I need to convert these to an array if I want to multiply it with the 3x3 matrix

[Matt J]

I thought I need to convert these to an array if I want to multiply it with the 3x3 matrix

It looks like vv is already a 3x3 array, so see my answer below.

Answer 1

[Matt J]

Might be what you want:

calc=V1*load('vectors.mat').vv