UsingWW: Can't convert an empty value to a real number on incorrect interval response

WeBWorK Problems

Can't convert an empty value to a real number on incorrect interval response

◄ Implicit Differentiation
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This was an error in the MathObjects code for checking unions. I have fixed it in the latest version of pg/lib/Value/AnswerCheckers.pm, which you can obtain from the CVS repository. Thanks for reporting the bug.

Davide

◄ Implicit Differentiation
searching for problems in the NPL ►

Using WeBWorK

WeBWorK Problems

Can't convert an empty value to a real number on incorrect interval response

Re: Can't convert an empty value to a real number on incorrect interval response