Maple Grading Issues: Negative Exponents

 

For most math expressions marking code like the following works well:

is((simplify($Ans)-simplify($RESPONSE))=0);

 

This does not seem to work well with questions like "Find the derivative of ". The following code will mark such questions correctly. The normal command converts an expression to a proper fraction.

a:=normal($RESPONSE);
b:=normal(algebraic expression for the answer);
evalb(simplify(a)=simplify(b));

 

For some reason this is more reliable if you define the answer within the Maple Grading, instead of in the Algorithmic section. I have found this code was needed for a problem as simple as mxn where n was 1..6 !

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 Last updated: 05/13/2019 SS/MUO