can't understand this statement

is this possible

b(1:2,3)

Answer 1

[Davide Masiello]

Yes, it extracts the terms on column 3 and rows 1 and 2 of b.

Example

b = magic(5)

b = 5×5

17 24 1 8 15 23 5 7 14 16 4 6 13 20 22 10 12 19 21 3 11 18 25 2 9

b(1:2,3)

ans = 2×1

1 7