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Function intersection
03-23-2020, 10:26 AM
Post: #1
Function intersection
In the Function application I drew two elementary functions: y = x ^ 2-2 and y = LN (x ^ 2-1). I wanted to find the intersection of these functions.
Unfortunately, this application will not do this. I do not know why. However, the places where these functions intersect without any problems are found by the Advanced Graphing and Geometry applications.

               
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01-07-2022, 11:20 PM
Post: #2
RE: Function intersection
I’m thinking this has been addressed by a firmware update (involving conversion from PPL to CAS). Has anyone observed this with the current firmware?

There could be a labeling issue here too, as what is actually being found (within the Function app, using the current firmware) is a local extremum (of the difference of the two functions).
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01-08-2022, 12:59 AM
Post: #3
RE: Function intersection
Same problem on my physical G2 with 12 02 2021 dated firmware…
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01-08-2022, 04:57 AM (This post was last modified: 01-08-2022 04:57 AM by jte.)
Post: #4
RE: Function intersection
Thanks for trying, and reporting back!

I’ve tried it again on a G2 Prime here and … lo and behold … my G2 here also failed to find an intersection between the two. (Although it did report an intersection when I tried earlier… Confused)

I’ve just now created a ticket for this in the bug tracker.
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