HP 50g - Graphing with IFTE
|
04-17-2021, 09:09 AM
(This post was last modified: 04-17-2021 09:17 AM by ramon_ea1gth.)
Post: #1
|
|||
|
|||
HP 50g - Graphing with IFTE
The last supported ROM 2.15 has a known bug when graphing an equation that includes IFTE. IFTE is very useful to plot piecewise functions, but the HP 50g throws an 'insufficient memory' message when plotting. There are several workarounds, like using the RPL version of IFTE in a program. But working with one or several IFTE nested commands inside an equation or algebraic object is very convenient.
I bet somebody else found this workaround, but I found interesting to report it: a simple solution is to embed the equation in a program that ends with →NUM and plot that program. For example, to graph 'IFTE(X>0,X,-X)', create this RPL program: Code: « 'IFTE(X>0,X,-X)' →NUM » Save it to a variable, e.g., FX1 and enter the graphing environment with the keys [LS+][Y=]. Then add the equation to be plotted as Y1(X)=FX1 and draw it. Another way of doing roughly the same is by putting this on the stack: Code: 4: 'IFTE(X>0,X,-X)' This way is practical to create/edit the equation with the preferred editing tool (the equation writer or the basic editor). And to enter additional changes in the equation it is only required to edit the variable 'EQ1'. Ramón Valladolid, Spain TI-50, Casio fx-180P, HP48GX, HP50g, HP Prime G2 |
|||
« Next Oldest | Next Newest »
|
Messages In This Thread |
HP 50g - Graphing with IFTE - ramon_ea1gth - 04-17-2021 09:09 AM
RE: HP 50g - Graphing with IFTE - Wes Loewer - 04-17-2021, 09:39 AM
RE: HP 50g - Graphing with IFTE - ramon_ea1gth - 04-17-2021, 11:04 AM
|
User(s) browsing this thread: 1 Guest(s)