The zeros function creates a real matrix with all elements set to the value 0.0.
rmZeros is a real matrix with the size nRows by nColumns with all elements set to 0.0.
nRows is the number of rows.
nColumns is the number of columns.
rvSize is a vector with two elements. rvSize is the number of rows and rvSize is the number of columns.
* m1 = [1,2,3] * m1 = [m1, zeros(1, 7)] * m2 = zeros(size(m1));