WeBWorK Problems

Comparing MathObject Formulas

Re: Comparing MathObject Formulas

by Paul Pearson -
Number of replies: 0
Hi Ian,

I would advocate using (named) constants in the context instead of variables.  The fewer variables there are in the context, the fewer variables there are to check during answer evaluation.  As a result of using fewer variables, the answer checker should be more robust and make fewer computations during answer checking.  I would recommend reading


and using


Also, if you want students to use names for constants instead of substituting values for those constants, you can set unrealistic values for constants.  For instance, instead of setting a gravity constant to be g = 9.8, you could set g = 2.3618 (some randomly chosen number that students are unlikely to use in their answer).

Best regards,

Paul Pearson