You'll use the vertical concatenation operator since they have the same number of columns.
mat1 = [1.05 0.17 1.64 .,
2.06 0.81 0.63 .,
0.23 1.87 1.24 -8,
0.72 0.42 0.43 -8,
0.59 0.17 0.67 -8];
mat2 = [2.78 0 0.59 -8,
1.85 . 1.24 -8,
1.19 0.86 0.75 8];
result = mat1 |/ mat2;
show( mat1, mat2, result );
/*
mat1 =
[ 1.05 0.17 1.64 .,
2.06 0.81 0.63 .,
0.23 1.87 1.24 -8,
0.72 0.42 0.43 -8,
0.59 0.17 0.67 -8];
mat2 =
[ 2.78 0 0.59 -8,
1.85 . 1.24 -8,
1.19 0.86 0.75 8];
result =
[ 1.05 0.17 1.64 .,
2.06 0.81 0.63 .,
0.23 1.87 1.24 -8,
0.72 0.42 0.43 -8,
0.59 0.17 0.67 -8,
2.78 0 0.59 -8,
1.85 . 1.24 -8,
1.19 0.86 0.75 8];
*/
|/ is vertical, || is horizontal, but you have different number of rows, so horizontal will not work.
Craige