HP 50g  summation

06032016, 12:47 PM
Post: #1




HP 50g  summation
Hello everyone, is there a way to make a summation in such a way that
'\GS(N=1,5,XN)' = 'X1+X2+X3+X4+X5' ? Simone 

06032016, 03:36 PM
Post: #2




RE: HP 50g  summation
(06032016 12:47 PM)Simone Cerica Wrote: Hello everyone, is there a way to make a summation in such a way that Your post is not clear enough, but if you want 50g build an expression 'X1+X2+X3+X4+X5' instead of counting the sum, I'm afraid there is no such a function buit in, but it should be easy to write a program using the concatenation of strings, that is "+". 

06032016, 04:21 PM
Post: #3




RE: HP 50g  summation
Or is that the sum,of a list?


06032016, 05:20 PM
(This post was last modified: 06032016 05:25 PM by Claudio L..)
Post: #4




RE: HP 50g  summation
(06032016 12:47 PM)Simone Cerica Wrote: Hello everyone, is there a way to make a summation in such a way that How about this way? Code:
Store it in let's say XSUM, then: 'XSUM(5,X)' EVAL will produce what you want. It's limited to singleletter identifiers (by using TAIL HEAD, this can be improved). Another improvement could be a start value for N, but you get the idea. Quick footnote: For those trying this in newRPL, the TAIL HEAD combination needs to be removed, as the identifiers in symbolics are unquoted, then the code is good for arbitrary length identifiers. 

06042016, 09:26 AM
Post: #5




RE: HP 50g  summation  
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