Library/ma117DB/set2/srw1_7_13.pg

[dkfarns]

Problem Seed: 123456

Unbounded interval here. The author coded this to be entered as "infinity" or "-infinity". One of the updates to WeBWorK made it so that typing "inf" replaces the text with an infinity symbol (similar for "-inf"). A student sees this and assumes everything is fine with his or her answer. But WeBWorK marks it wrong since the strings "inf" and "infinity" are not the same. To actually get the correct string into the box, one either has to either quote the text or copy and paste the text from somewhere else.

I have edited the problem and it seems to be working as one would hope now. My version is attached.

srw1_7_13_suggested-fix.txt