[r-t] delta based transposition for blue line generation

[Alan Burlison]

On 11/06/2016 00:15, Alan Burlison wrote:

 > Rows are represented as 0-based bell numbers and if for example if we
 > start with reverse rounds and apply the first change of PH5 to it:
 >
 > Row(0,1,2,3,4) * Change(1,-1,1,-1,0)

Doh, edited the bit below and not this, should of course be

Row(4,3,2,1,0) * Change(1,-1,1,-1,0)

-- 
Alan Burlison
--