[SciPy-user] Easy way to make a block diagonal matrix?

Stéfan van der Walt stefan@sun.ac...
Wed May 20 16:31:56 CDT 2009


Hi Joseph

2009/5/20 Joseph Smidt <josephsmidt@gmail.com>:
>     Is there an easy way to create a block diagonal matrix from
> existing matrices?  For example, lets assume I have three 2x2 matrices
> a, b and c.  Is there something like d = block_diag(a,b,c) which would
> create a 6x6 block diagonal matrix from a, b and c?  If not, is there
> a straight forward way to accomplish the same thing?

The attached function should do the trick.

Regards
Stéfan
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