[Tutor] Simple RPN calculator
cyresse at gmail.com
Sun Dec 5 06:31:50 CET 2004
RPN calculator, with operators and operands separate? Sounds
counter-intuitive to me.
What's the advantage I'm missing?
Nice Shodan quote Max ;)
On Sat, 4 Dec 2004 23:45:18 +0000, Max Noel <maxnoel_fr at yahoo.fr> wrote:
> On Dec 4, 2004, at 23:30, Alan Gauld wrote:
> >> to make it request for input(s) of say a simple math like "1 2 3 4
> > 5 + - * /".
> > Look at raw_input()
> > But if you are that much of a beginner you need to take several
> > steps back and try one of the tutorials, they all cover raw_input
> > fairly early on...
> > And finally doesn't RPN put the operators first? Or is it me thats
> > getting confused fromtoo much Lisping recently?...
> Nope, RPN calculators (such as the HP48GX, IMHO the best calculator
> ever made) require you to input the operands first, then the operators.
> It's both easier to implement and more intuitive (not to mention way
> faster to both input and compute) once you've gotten the hang of it.
> You can probably do a very basic RPN calculator in less than a hundred
> lines of code, using raw_input() and a stack (well, a list's append()
> and pop() methods).
> -- Max
> maxnoel_fr at yahoo dot fr -- ICQ #85274019
> "Look at you hacker... A pathetic creature of meat and bone, panting
> and sweating as you run through my corridors... How can you challenge a
> perfect, immortal machine?"
> Tutor maillist - Tutor at python.org
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