problem with vector and matrix tdf#89387

[Filippo giacchè]

Hi to everyone,
I'm working on tdf#89387 for university assignment.. I'm trying to speed up
matrix (ScMatrix) operations using mdds and I 'm changing
ScInterpreter::ScGCD.
The solution I have proposed here
https://gerrit.libreoffice.org/#/c/32972/10/sc/source/core/tool/scmatrix.cxx
work only for one array.
For example when I'll insert "=GCD({3;6;9})" the result is correct , but if
I'll insert "=GCD({6;6;6};{3;6;9})" the result is wrong (it return 6).
Can someone tell me why this happens?

Kind regards
filippo giacchè
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