WeBWorK Problems

Intermediate Value theorem, custom checker

Re: Intermediate Value theorem, custom checker

by Dick Lane -
Number of replies: 0
Davide wrote "Hope that helps."
        YES, it does !

1)  Type of interval --- in hindsight, I should have identified my main concern was an assurance that I could omit providing a "type error" message because the system would always do it for me.

2)  Your comments lead me to consider writing another problem with a non-monotonic function where the point estimate in second part is required to be in the interval answer for the first part.

3)  I suspect the anomalies involved relative tolerance issues.  They have not recurred after I added the following line.
        Context()->flags->set( tolerance => 0.0000001 , tolType => 'absolute');