I Reverse Polish Notation Heart T-Shirt


I Reverse Polish Notation Heart T-Shirt - $9.95

Be still my geeky heart! Neatoramanaut Ana models this wonderfully geeky I Reverse Polish Notation Heart T-Shirt.

What's a Reverse Polish notation? It's a mathematical notation where the operator (e.g. +, -, x) follows the operands. Those of you who have the old HP-10C series calculator are probably nodding in nostalgia right now!

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More I Heart T-shirts | Science T-Shirts over at the NeatoShop


I so much by the let down of polish notation by HP disappointed was. I with my father of it this afternoon talked.

When I was at school, the math teachers always started the year telling "you can get any calculator you want, but no HP."
There I lifted hand and grinned I already had one.
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ahahaahaha, I'm studying Computer Science, and they make us learn the Polish notation. It's so darn confusing, but they insist that its actually easier to use than the normal notation once you get used to it :O
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Sadly, this t-shirt isn't really correct. Reverse polish notation is stack based so this should be "I notation polish reverse <3" since the modifiers are operations on the object "notation" that change its meaning.
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Hey Shan,

If you ever have to write something to evaluate mathematical expressions input by users as text, you'll wish everyone wrote 'em in RPN. I always convert the expression (like "(1+2)/12+88") into a nice RPN stack, then calculate the answer.
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My HP32S II is right here on the desk. It is my everyday RPN calculator. My HP45, HP10C are stored away. The HP16C is in the kitchen. Really.

I wish HP still made an RPN calculator in that notecard format. I thought that was brilliant design. I know the HP12 is still out there but, it isn't RPN. I guess the business types can't handle RPN.

I still think in RPN with a slight slide rule accent.
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Check out the 12C:

http://www.amazon.com/Blk-Gold-FINANCIAL-BUILT-FUNCT/dp/B00000JBLH

I wish they still offered the 15C; I do more engineering than financial. I have a 15C emulator that I use on the computer as a calculator, and my mobile phone calculator lets me set it to RPN mode!
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Charles wrote:
>Sadly, this t-shirt isn't really correct. Reverse polish notation
>is stack based so this should be "I notation polish reverse <3"
Not true - RPN is one "variable" so it's correct as it is. It could be: "I, Reverse Polish Notation, <3".
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To co chcecie wiedzie? po polsku? Ch?tnie Wam napisz?, poniewa? te? uwielbiam polsk? mow?, a szczególnie jak w Szczebrzeszynie chrz?szcz brzmi w trzcinie:)!
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@Margaryna, RPN can't be a single variable unless you're claiming very non-standard syntactic rules. Spaces are used as token delimiters, meaning "reverse", "polish", and "notation" are all separate tokens. For RPN to be a since variable, it would have to be written as "RPN" or "reverse-polish-notation" or use some other connectors to maintain it as a single token. To claim its a single variable in its current form is to imply context variable syntax rules for the language, which is not normal.
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