2013-06-02 2 views

ответ

6
-outer(1:4, 1:4, '-') 
##  [,1] [,2] [,3] [,4] 
## [1,] 0 1 2 3 
## [2,] -1 0 1 2 
## [3,] -2 -1 0 1 
## [4,] -3 -2 -1 0