Well, so much for "ticalc.org helps the earth". I'd hate to think of all the chemicals released by burning the plastic.

:(

haha....that's an awesome point! I guess you could say that Joey isn't ticalc.org only a part of it!!! We'll needto give him a stern talk.

Yeah, Neal's uber-liberal mom mentioned that as we watched it burn... perhaps I should have thought of that first. :-)

Isn't there something about "cruel and unusual punishment" and "punishing the innocent" that's aginst the law? Just think of how the poor helpless calculator felt.

:(

Rather warm, I'd imagine.

My goodness, your on one heck of a roll. BTW you beat me to it.

I've got a pyro friend. When I told him about the thermite and 81 he just cracked up...

Really? I'd expect him to burn up...




(shoot me now and end the misery)

The poor calc!!!!! :-( If you can't use an electronic device, at least take it apart and use the parts.

I hate RPN-it's illogical and hard to use. Isn't it Casio which is known for their RPN calcs? Or is it HP? Evil, evil, all of them...

I always saw anti-TI and pro-HP leanings in Joey. Did you see on the message boards where he kept on talking about the HP49G+? He also hates the 86 menus. >:-O

HP is known for the RPN calcs

Casio is known for the unusable calcs

Also, the 86 menus look like Casio's

But I'm not sure which came first...

well, the 86 menus came from the 85, which model casio?

Oh, jeez, have you seen the new ClassPad 300 it's super freaking awesome... it is definetely a calc lover's dream.... classpad.org

LOL!!! Unusuable? How? :-)

What is illogical about RPN! It takes less keystrokes. I often use the RPN APP on my SE.

MWM

But... typing 3 + 5 is much closer to they way you'd write it on paper than 3 5 +, or however you'd do it. Are you sure it's less keystrokes?

Doing 3 + 5 can go either way. I find RPN extremely useful when adding large quantities of numbers.

I have used a friends calc in 7th grade and it was an old HP RPN calculator. I don't know how she could do it, but between numbers, it just looks right to have the plus sign in the middle.....for example....on a TI calculator you could do...
5 + 6 - 8*4
A lot more to do in RPN....

5 6 + 8 4 * -

5 [enter] 6 + 8 [enter] 4 * -

RPN loses out for simple stuff like this. Basically, if you have to use brackets for an expression, then RPN has the advantage.

For instance, suppose the above result needed to be divided by 2. With an RPN entry system, you'd just type [2] [/]. With algebraic entry, you'd either have to add 2 extra brackets, or manually select the last answer and divide it by 2.

As an exmple where RPN shines, try findin the sine of (e^ (sqrt (2) / 4) + 9)

[2] [sqrt] [4] [/] [e^] [9] [+] [sin] will get the result. Its a PITA to enter things like that on an algebraic calculator.

Hmm...does anyone know of any good tuitorials on RPN? I'm going to get the app that transforms my 83+ to RPN mode

You don't need tutorials for RPN. Click "(Web Page)" and read. It'll take about 10 minutes, if that.

It's very simple if you know how a stack works. Basically you call an operation on the uppermost elements of the stack... for instance
3 5 + 7 -

the interpreter adds 3 and 5 to the stack, and when it gets to + it adds the result of 5 + 3 to the stack... then it adds 7 to the stack, and calls -, adds the result of 7 - 8 to the stack. Finiding nothing else to do it returns the only element left on the stack.

basically, yes, but your use of the word 'add' so much will confuse people who don't know quite what you mean...
3+5-7= 6 strokes Algebraic
3[enter]5+7- 6 strokes RPN

what the RPN input is doing is placing 3 on the stack, that's what the first two buttons do, 5 shows 5 at the input line, then the plus adds the 3 and 5 and *replaces* the orginial 3 with an 8. Now, the 7- does about the same thing, but instead of adding it subtracts. It replaces the 8 with a 1, there is nothing left on the stack but the 1.

There, I've dumbed down your explanation enough so that anyone who takes the trouble to read it should understand what's happening :D.... now if I could only post this AC....

I suppose a computer science degree can be a bad thing when trying to explain things... :P

A simple solution is the ANS/ans(x) variable. Depends on what calculator you have.

say you wanted to do (3+5)(2+4)...10 key strokes for TI calc...3 5 + 2 4 + *...7 strokes in RPN... :)

3 enter 5 + 2 enter 4 + *

is 9 keystrokes, as opposed to 11 (you forgot the equals sign)