#4 Bad results in Palm version of MEditor

[Anonymous]

If I run Palm version of MEditor ad trying mulitipliing
matrices, results are bad.
For example :
{{2,2},{5,6}}*{{1,2,},{3,4}}={{12,14},{26,30}}
and for
{{1,2,},{3,4}}*{{2,2},{5,6}}={{12,14},{26,30}}
But in matrices isn't A*B=B*A in any case.
In PC version it's ok.

Nice mathematican system. (I thing little and open
source Map*e :) ).

[Nobody/Anonymous]

Logged In: NO

PC Version is not ok too: Look
{{2,2},{5,6}}*{{1,2},{3,4}}={{12, 14},
{26, 30}}

{{1,2},{3,4}}*{{2,2},{5,6}}={{12, 14},
{26, 30}}

[Raphael Jolly]

Logged In: YES
user_id=692744

Hello,

This is why there's a "matrix" operator:

matrix({{2,2},{5,6}},{{1,2},{3,4}})={{8, 12}, {23, 34}}
matrix({{1,2},{3,4}},{{2,2},{5,6}})={{12, 14}, {26, 30}}

I'll consider documenting this in future versions.

Thanks

[Raphael Jolly]

Logged In: YES
user_id=692744

In v1.0rc4 the issue is mentionned in presentation.txt + an
exception is thrown when multiplying matrices without matrix
().