Given a matrix mat of size mXn and a row vector v of size 1Xs, return a matrix with m+1 rows that conatains mat over v. The number of columns is the larger between n and s.
If s>n, the matrix is padded with Inf.
If n>s, the vector is padded with -Inf.
Examples:
inputs: mat = [1 2 3 4] v = [5 6 7 8]
output: comb = [1 2 Inf Inf 3 4 Inf Inf 5 6 7 8 ]
inputs: mat = [1 2 3 4 5 6 7 8 9 10] v = [11 12]
output: comb = [1 2 3 4 5 6 7 8 9 10 11 12 -Inf -Inf -Inf]
I think "m*n" & "1*s" (or "m×n" & "1×s") may be clearer. I read "mXn" & "1Xs" firstly as variable names.