How can i implement subtraction without using for-loop ?

I have a vector J 1000x7 and a vector K 16x7

I want to take each row of J(one at a time) an subtract it from every row of K.

For example i want to take the first row of J and subtract it from each row of K and then take the 2nd row of J and do the same .

How can i implement this without using for-loop (because for loop is too slow for my programm).

Answer 1

[Walter Roberson]

JminusK = J - permute(K, [3 2 1]);

The size of JminusK will be 1000 x 7 x 16.