MATLAB: Matrix column multiplication with rows of another matrix

matrix column multiplication

this is my (9*9) matrix.
     1     1     1     1     0     1     1     1     1
     1     1     1     1     1     0     1     1     1
     1     1     1     1     1     1     0     1     1
     1     1     1     1     1     1     1     0     1
     1     1     1     1     1     1     1     1     0
     0     1     1     1     1     1     1     1     1
     1     0     1     1     1     1     1     1     1
     1     1     0     1     1     1     1     1     1
     1     1     1     0     1     1     1     1     1
I would like to multiply entire column 2, 3, and 4 etc. of this matrix with rows of the below column vector matrix one by one.
000
001
010
011
100
101
110
111
This is multiply 000 with column 2 , 3 and 4. which will result entire column 2, 3 and 4 as zero.
Then multiply 001 with column 2 , 3 and 4. which will result entire column 2, 3 as zero and column 4 will remain same. This process should continue for each row.

Best Answer

Try this:
m=[...
  1     1     1     1     0     1     1     1     1
  1     1     1     1     1     0     1     1     1
  1     1     1     1     1     1     0     1     1
  1     1     1     1     1     1     1     0     1
  1     1     1     1     1     1     1     1     0
  0     1     1     1     1     1     1     1     1
  1     0     1     1     1     1     1     1     1
  1     1     0     1     1     1     1     1     1
  1     1     1     0     1     1     1     1     1]
v = [...
  000
  001
  010
  011
  100
  101
  110
  111
  111]
vm = repmat(v, [1, size(m, 2)])
out = m .* repmat(v, [1, size(m, 2)])
Use bin2dec if your v is actually binary numbers.
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