50g piecewise functions - Printable Version +- HP Forums (https://archived.hpcalc.org/museumforum) +-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html) +--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html) +--- Thread: 50g piecewise functions (/thread-250277.html) 50g piecewise functions - Kurt Fankhauser - 09-15-2013 Is it possible to plot a piecewise function. I imagine that you would enter a separate Y= function for each segment, but how do you limit the domain of each function? Also, how do you clear previous defined Y= functions? Every time I add a new one it increments the counter on it (so the latest one is displayed as Y11(x)=...). All previous functions are displayed in the CHOOS box. I want to clear them all. The CLEAR soft key only clears the functions listed in the PLOT-FUNCTION window, but not the CHOOS box. Re: 50g piecewise functions - Pier Aiello - 09-15-2013 For piecewise functions use IFTE (check best of on wiki4hp ) Reset function number from the graph menu - Pier Aiello - 09-15-2013 For the functions in the graph menu, i just found (during my mining task on discussion boards) a really similar question. I'll add it on the page previously linked :)Edited: 15 Sept 2013, 9:13 a.m. Re: 50g piecewise functions - Kurt Fankhauser - 09-15-2013 Thanks Pier. I could not get the IFTE to work correctly with the Y= definition and plotting. The 50g thought for a while then gave an out-of-memory error. I read of others having similar issues. Instead I found this post which suggested to multiply each segment by a logical domain relational expression: For example, Y=(X^2)*(X>-1)(X<0)+(x-3)*(X>=0)(X<3) That worked for me on my 50g with version 50-c revision 2.15 ROM. Re: Reset function number from the graph menu - Kurt Fankhauser - 09-15-2013 Thanks Pier. Boy, could they have made this any more difficult? Re: 50g piecewise functions - Pier Aiello - 09-16-2013 Good :) Re: 50g piecewise functions - Simone Cerica - 09-16-2013 IFTE BUG is present in ROM 2.15: https://groups.google.com/forum/#!topic/comp.sys.hp48/R3Pp62J_9SM SC