> pww("matt", "2/1", nrow = 7, ncol = 9)
/ - - - - - - - - - \ 
| X X   X X   X X   | 
|     X     X     X | 
| X X   X X   X X   | 
| X X   X X   X X   | 
|     X     X     X | 
| X X   X X   X X   | 
| X X   X X   X X   | 
\ - - - - - - - - - / 

