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 Forum: Computers, Math, Science, and Technology   Topic: Have you written a calculator?

MoonPatrol
Posted: 15 Jul 2004, 4:18 pm 

Replies: 20
Views: 6,077
Writing an RPN (reverse polish notation) calculator is pretty easy in most langugages... parsing is handled by employing a simple LIFO-type data structure like a stack. There is even hardware that uses LPN, namely HP calculators. Yes, and a classic way of evaluating normal ("infix") arithmetic expr...

 Forum: Computers, Math, Science, and Technology   Topic: Have you written a calculator?

MoonPatrol
Posted: 13 Jul 2004, 1:58 am 

Replies: 20
Views: 6,077
Are we talking about an expression evaluator that you give a string like say "3 * 2 + 5" and it comes back with a result That type of calculator is what I mean. Are you interested in solving this problem from a pragmatic point of view (that is, "how do you write an arithmetic expression evaluator w...

 Forum: Computers, Math, Science, and Technology   Topic: Have you written a calculator?

MoonPatrol
Posted: 11 Jul 2004, 7:16 pm 

Replies: 20
Views: 6,077
I'm unclear about what we are talking about here. Are we talking about an expression evaluator that you give a string like say "3 * 2 + 5" and it comes back with a result, or are we talking about a "desktop" calculator that has buttons you can click?

 Forum: Computers, Math, Science, and Technology   Topic: Have you written a calculator?

MoonPatrol
Posted: 10 Jul 2004, 6:53 pm 

Replies: 20
Views: 6,077
What sort of calculator? One of those ones with the buttons? I wrote a simple one of those once in Smalltalk.

 Forum: Health, Fitness, and Sports   Topic: Call me hot, videogames hot, and real real hot

MoonPatrol
Posted: 07 Jul 2004, 12:09 am 

Replies: 17
Views: 6,171
That's an impressive list. No Mario 64? I got all 120 stars in that and saw Yoshi on the rooftop. It was one of the most difficult things I've ever done in my life. I wept tears many times getting those stars.

 Forum: School and College Life   Topic: Do you have problems with english?

MoonPatrol
Posted: 27 Jun 2004, 11:41 pm 

Replies: 30
Views: 7,675
A good way to write an essay is to outline it first: think up a bunch of ideas and write them down. Then expand each of those ideas into paragraphs. State each idea as the first sentence of a paragraph, and use the rest of the paragraph to explain the idea. Write an introductory paragraph to explain...
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