[Wolves] rotate 2d array by 45degrees

[Stephen Parkes]

Stuart Langridge wrote:
>>Does anyone have a formula to rotate a 2d array by 45 degrees so you end
>>up with an array 142%(?) of the size with the contents of the old array
>>rotated.
> 
> 
> What? What does "rotate an array" mean? So you take the matrix
> 
> (1,2,3
>  4,5,6
>  7,8,9)
> 
> and transform it to be
> 
> (0,0,1,0,0
>  0,4,0,2,0
>  7,0,5,0,3
>  0,8,0,6,0
>  0,0,9,0,0)
> 
> ?
> 

yup

-- 

Information wants to be beer, or something like that.