HP50g small tips and trick

[gallantwarrior]

It wasn't obvious to me at first, but CONVERT, REWRITE, NEXT, ->Q (or ->Qpi) will convert a decimal back into an exact rational.

It's really helpful if you are trying to do exact equations but some of your inputs are given as decimals. Most people who ask how to do this on-line are given incorrect answers so if you try to google this, or ask one of those new fancy AI's you won't find the correct function.

Now if I could figure out how to get it to leave radicals into my denominators unless I ask it to rationalize my denominator specifically. Sometimes I want it to remain unrationalized.