Comment by treve

Laws in the US aren't taken as literal as in civil law systems. The intent and precedent is what carries much more weight in the end. Graph calculators are unlikely to be tested in court because it's irrelevant with respect to what this law is trying to accomplish.

https://en.wikipedia.org/wiki/Common_law

I often see laws discussed here and people finding some edge case and presenting this as a gotcha. The reality is that it's unlikely to matter.