Function intersection

03232020, 10:26 AM
Post: #1




Function intersection
In the Function application I drew two elementary functions: y = x ^ 22 and y = LN (x ^ 21). 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. 

01072022, 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). 

01082022, 12:59 AM
Post: #3




RE: Function intersection
Same problem on my physical G2 with 12 02 2021 dated firmware…


01082022, 04:57 AM
(This post was last modified: 01082022 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… ) I’ve just now created a ticket for this in the bug tracker. 

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