Sending from graph to home or CAS screen


One thing I miss from the HP 50g is when finding points of interest on a graph, the result would be tagged and sent to the home screen where further use could be made of those numbers. Is this possible on the Prime? If not, it would be a wish book item for me!


One another thing we miss from the HP 50g is the possibility to find points of interest on a graph, (slope extremum ...) if we place user function in Fi(X)...

I hope some improvement here in future release.


Please explain what you are envisioning? The function app has a "fcn" menu key that allows to find roots, slope, extremum, and so on in the graphing interface, and all these can be called directly using using the function calls in the toolbox->app->function application function menu.

For example, ISECT(X^2,X+4,2) or SLOPE(F1,1.5)

These functions vary with the application and , while not everything is possible in all graph types, a lot of functionality exposed there for direct useage.


Edited: 6 Oct 2013, 3:38 p.m.


Thank you for your answer Tim,

In fact the "fcn" menu key that allows to find slope, extremum in the graphing interface don't works with user define function....

For example as explain in a post ( ) if I define (with the shift "Define" key) sincard(X)=sin(X)/X then enter : F1(X)=sincard(X) in symb view I can see the graph in plot view but I can't ask for points of interest... (root only seem to work...)For my personal use it's a real problem...

For now I have to enter explicitly the function... And what about function defined by a program ?

My apologies for very bad english...

Edited: 6 Oct 2013, 4:20 p.m.


Understand what you mean now. I will put it on this list of items to look at and investigate. It may never work completely as a user function can have all sorts of strange things in them, but for a specific subset or type (such as the DEFINE box), there might be something that can be made to work.

Thank you!


Edited: 6 Oct 2013, 5:36 p.m.


Thank you for the quality of your listening !

Hope the improvement will also work for cas user function : f(x):=sin(x)/x then F1(X)=f(X)...

I'am very impatient to test the real prime (at the end of the week... The parcel is on the road :o) Thank's for these beautiful calc !


The information is stored in the app variables, but there is currently no way to send a number directly to the stack.

Will mark it down on the list of enhancement requests. Thanks.


Edited: 6 Oct 2013, 3:38 p.m.

Possibly Related Threads…
Thread Author Replies Views Last Post
  HP Prime: CAS taylor Alberto Candel 5 4,024 12-13-2013, 09:45 PM
Last Post: Alberto Candel
  Sending little images to the Prime (...and Program name bug?) Erwin Ried 19 7,354 12-10-2013, 05:35 PM
Last Post: Erwin Ried
  HP Prime CAS curiosity bluesun08 11 4,865 12-10-2013, 01:03 PM
Last Post: Han
  [HP-Prime CAS] "Warning, ^ (Command) Is ambiguous on non square matrices"?? CompSystems 1 2,195 12-07-2013, 07:15 PM
Last Post: CompSystems
  HP Prime: complex numbers in CAS. Alberto Candel 1 1,907 12-06-2013, 02:36 PM
Last Post: parisse
  HP Prime: Proper Use of Home View and CAS View James Williams 9 4,274 12-05-2013, 02:44 PM
Last Post: James Williams
  [HP Prime] plotfunc() bug in CAS Chris Pem10 2 2,416 12-04-2013, 02:46 PM
Last Post: Chris Pem10
  HP Prime: Home/CAS? Alasdair McAndrew 11 3,907 11-26-2013, 02:48 PM
Last Post: Alberto Candel
  Prime screen scratches - Use a screen protector Eelco Rouw 11 3,337 11-19-2013, 10:16 PM
Last Post: Eddie W. Shore
  HP Prime numerical precision in CAS and HOME Javier Goizueta 5 2,421 11-16-2013, 03:51 AM
Last Post: Paul Dale

Forum Jump: