Hi, i'd like some help creating a matrix following these rules:
The matrix should have "n" number of rows and "n+1" number of colums.
now depending on the elements position in the matrix i'd like certain outputs.
I'll call position in the row "i" and position in column "j"
if i=j, the element should be 2.
if |i-j| = 1, the element should be -1
everything else = 0.