# Opening *.nb file in Maple

The problem is simple but maybe there is solution. I have large file in \$Mathematica\$ but some calculation I should continue in Maple and I have problem with opening .nb file in Maple. Derivatives don't work and lot of mistakes in recognizing. This is one simple example

``````Plus[Times[-1,A1,Derivative[0,1,1][P][x,y,z]],Times[A3,Derivative[0,0,1][P][x,y,z][x,y,z]],Times[-1,A2,Derivative[0,1,0][Q][x,y,z][x,y,z]]]
``````
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## migrated from mathematica.stackexchange.comDec 20 '12 at 12:06

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Does Maple parse Mathematica syntax at all? – Yves Klett Dec 20 '12 at 10:55
uh, probably borderline OT here anyway - might be better suited to a forum dedicated to Maple. – Yves Klett Dec 20 '12 at 10:57
Maple gives this -A1 D[[]](P)(x,y,z)-A2 D[[]](Q)(x,y,z)(x,y,z)+A3 D[[]](P)(x,y,z)(x,y,t) – George Mills Dec 20 '12 at 10:58
There is also just a MMA to Maple translator package (in addition to the import one linked to above) maplesoft.com/support/help/Maple/view.aspx?path=MmaTranslator/… – Nasser Dec 20 '12 at 11:19
yes, but when I want to convert derivative in this form, maple doesn't recognize Times[-1, A1, Derivative[0, 1, 1][P][x, y, z]] – George Mills Dec 20 '12 at 11:32