Evaluating reverse polish using a stack

[@rapramos5687]

let's take a moment to thank the Polish for inventing postfix notation

[@kubadura3977]

Poland did not invent it! invented by the Australian scientist Charles Hamblin

[@likeaJohnny]

@@kubadura3977 According to wikipedia: > "The description "Polish" refers to the nationality of logician Jan Łukasiewicz,[1] who invented this notation in 1924." > "The algorithms and notation for this scheme were extended by Australian philosopher and computer scientist Charles L. Hamblin in the mid-1950s."

[@HurrayBanana]

@james. You'd remove it if it was part of an assignment or to be used as part of a larger expression.

[@HurrayBanana]

Yeah like I said

[@wickedbazz]

fantastic. When would you remove the answer though?

[@SkyRocket159]

So when ?

[@AdamTrojnar]

very good teacher :)

[@kubadura3977]

Kto z polski próbuje to ogarnać ? :)

[@egyptianluvr9223]

Does anyone here have the june 2015 paper for F453? much appreciated

[@HurrayBanana]

+Mo Hamza These are locked behind the ocr interchange which is only accessible by exam centres

[@egyptianluvr9223]

So there's no way I could get it? i'd spend weeks waiting for my officer to do it...

[@HurrayBanana]

@james. You'd remove it if it was part of an assignment or to be used as part of a larger expression.