Ooh, this looks like you’re using it as a condition and not in a prompt (i.e. not printing it in a note). Seems very similar to the discussion happening in the other thread on the forum: Pi as student input
I wouldn’t recommend checking against an irrational number and the best advice I can give is to use pi to a long decimal (less than 15 places) here. I’d recommend something like 5-8 digits.
slope_graph.number("m") < 3.14159265 or slope.graph.number("m")>3.14159266 "...try again...."