Decimal to fraction conversion and "Intelligent Math"

[TychoBrahe4736]

I've always wondered this. Why can't I find "Intelligent Math" in the on-calc help to learn what it's for?

In help, the only search hit (searched for 'Intel') I get is for Main > Home View > Home Settings > Page 2

However, the help page for that doesn't say a word about this topic. Though, I do have the checkbox setting in my settings.

My firmware version is 2.1.14730 (2023 04 13), Hardware version D