Hi,

The attached file illustrates the problem.

In one case the product of two matrices made up of submatrices does evaluate but in the other case results in anthe error message appearing.

Please clarify.

Thanks.

Farlan

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Matrix_mult.sm (8 KiB) downloaded 50 time(s).

Hello Farlan,

I suggest you to search the Forum on "block matrices" and to read the posts you find.

Regards,
Radovan