I have been able to successfully input formulas into my Quiz (not New Quiz) using multiple variables. I can successfully enter Eulers rule for faces, vertices, and edges (V+F-2=E) solving for E.

However, I cannot get it to work for solving for the number of faces. I currently have e-v+2. With random numbers generated in the quiz e = 17 and v = 7, I get the answer of -2. The E value is set to 15-25 no decimal. The V value is set to 5-7 no decimal.I put in e-v into the formula and get the answer -4. I've tried using parentheses, spaces, variations of the variables(-f-2+e).

Can someone let me know what I am doing wrong please?

Thank you.

What a weird result!!

I got the same. I changed the e and v to var1 and var2 thinking maybe it thought e or v was a function of some sort and it worked. WT.... F.. That might have to be a puzzle to work on.