RPN Tutorial  Printable Version + HP Forums (https://archived.hpcalc.org/museumforum) + Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum1.html) + Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum2.html) + Thread: RPN Tutorial (/thread197559.html) 
RPN Tutorial  Eddie W. Shore  09252011 In light of the HP 15C LE, it is my hope that there are new users of RPN calculators, either through the HP 15C, or by an Andriod (sp?) or iPhone/iPad app. This is a short "do by example" tutorial on basic RPN that I posted on my blog. It is not towards any specific calculator in hopes that newbies can learn from it whatever RPN machines/emulators they have. I am thinking of doing a basic keystroke programming tutorial (15C, 12C, or if anyone has a request, I'll try cater to that calculator instead  note my 41C is in repairs, I don't have a 42 (but I have Free42), and I don't have an Andriod device). Please check out the blog and me know what you think. Eddie
Edited: 25 Sept 2011, 1:56 a.m.
Re: RPN Tutorial  Xavier A. (Brazil)  09252011 Hello Eddie, Nice. You may include this graph: RPN STACK PERMUTATIONS See this thread: http://www.hpmuseum.org/cgisys/cgiwrap/hpmuseum/archv020.cgi?read=184373
Regards.
Re: RPN Tutorial  Dieter  09252011 Hi Eddie, I think it's a good idea to familiarize others with the benefits of RPN. However, some errors should be removed:
RPN uses one stack that consists of (usually) four registers X, Y, Z and T. So, X, Y, Z and T are four registers (not stacks), each register stacked on top of the other. That's why the whole arrangement is called a stack.
Maybe an RPN novice will get the idea behind the stack more quickly if the examples show intermediate results. For instance like this (example #5): 2 [1/x] 0,5000 Re. Enter: about 30 years ago I had a book on RPN that described the idea behind the ENTER key in twoargument calculations this way: ENTER is required to tell the calculator that you have completed number entry. So 5 ENTER 3 enters two numbers five and three instead of a 53, thus separating the 5 from the 3. This also means that an ENTER is not required before or after a numeric operation, before or after a STO or RCL, before or after Pi, etc.: in all these cases it's clear that the current number resp. result is complete, and everything keyed in next will belong to a new number. So the first ENTER in your example #5 is obsolete since after 1/x the calculator knows that the result (1/2) is complete and the following 3 belongs to a new number. This idea was very helpful for me in the first weeks after I aquired my brand new 34C back then. Maybe you will find it useful as well. I really like the idea to help new RPN users the way you intended. That's why I suggest these improvements. :)
Dieter
Re: RPN Tutorial  Eddie W. Shore  09262011 Thanks Dieter and Xaiver not only for the suggestions but also finding the errors. Xaiver, I want to study the diagram closer so I can understand it. Re: RPN Tutorial  Walter B  09262011 Nice work :) For the example with the square root of the sum of squares, however, I'd prefer 3instead of using y^x. Re: RPN Tutorial  Marcus von Cube, Germany  09272011 ... which will not work on the 20b or 30b in RPN mode.
Re: RPN Tutorial  Walter B  09272011 One more reason why I dislike RPL, also camouflaged.
Re: RPN Tutorial  Eddie W. Shore  09272011 However, the above method (3 ENTER X etc...) works on the WP34S.
Re: RPN Tutorial  Dieter  09272011 Eight keystrokes!!! That's way too complicated, Walter. ;) 3 ENTER 4 RPor even 3 i 4 ABSBoth suggested methods also provide better precision than a manual calculation. So this rectangularpolar conversion stuff (which I don't use at all otherwise) finally makes some sense to me. ;)
Dieter
Re: RPN Tutorial  Walter B  09272011 Since we did our best to make it RPN :)
Re: RPN Tutorial  Walter B  09272011 You're right absolutely, Dieter :) Please compare, however, also with the ten keystrokes in Eddie's original tutorial, take 2. After all, your solution is the best :)
