Exclude not working?

Here is a small example of part of a larger exercise where I noticed that C was not excluding 0 as it should be. Variant j demonstrates this. Doenet

If I take out the $A, then it seems 0 is excluded. Some (limited) testing shows that B seems to be excluding its multiple values just fine. What am I doing wrong?

Chrissy

Well, for variant j, it seems like it is excluding 0. It’s just giving you the number -2.220446*10^(-16)! :grinning_cat:

Strange, I thought I had addressed such round-off errors with exclude. I’m not sure why this on is slipping through. Will investigate.

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We published version 0.7.11, which should fix this error.