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Reverse Polish notation calculator



#2

Found in an appealing tutorial: Learn You a Haskell

Quote:
While most modern calculators use infix notation, some people still swear by RPN calculators.

Quiet a few of them can be found in this forum, I guess.

Just for those interested in the code: foldl is pretty much the same as STREAM in RPL.

Cheers

Thomas

PS: Unfortunately the calculator is NOT RPN.


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