RE: transform a string with variable length to a matrix

[Goebel, Juergen]

> Benjamin Lindner wrote:

> If I interpret your problem correctly, then you want to transfer a 
> number into a vector containing the binary representation.

You're absolutely right.

> You can do this without the intermediate string conversion by
> 
>    A = 9;
>    Nbits = ceil(log2(A));
>    bitmap = uint32( 2.^[0:Nbits-1] );
>    M = double(bitand(A,bitmap) ~= 0);

That's ok (and something like this was my first attempt, too),
but I think using an internal function is significantly faster
(without having measured it).

Thanks a lot,

Jürgen