Line: 1 to 1  

 
Line: 11 to 11  
 
Added:  
> >  Errata:  
Added:  
> >  The transformation for the antidiagonal case shown in this paper is incorrect. The correct one is:
i' = i + j  1 j' = i, if i' <= ncols j' = ncols + 1  j, if i' > ncolsThe transformation shown in the paper is the reverse transformation for the diagonal case. Code links:
Reported by Xiuxia Zhang  
