As does R :) > c(1, 1, 1) + c(2, 2, 2) [1] 3 3 3 > matrix(c(1, 1, 1, 2, 2, 2, 3, 3, 3), + ncol = 3, byrow = TRUE) + + matrix(c(4, 4,

As does R :) > c(1, 1, 1) + c(2, 2, 2) [1] 3 3 3 > matrix(c(1, 1, 1, 2, 2, 2, 3, 3, 3), + ncol = 3, byrow = TRUE) + + matrix(c(4, 4, 4, 5, 5, 5, 6, 6, 6), + ncol = 3, byrow = TRUE) [,1] [,2] [,3] [1,] 5 5 5 [2,] 7 7 7 [3,] 9 9 9 Not quite so concise and elegant but it's pretty straightforward stuff for most R users.