Advanced Graphing app sometimes fails to find POI - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: HP Prime (/forum-5.html) +--- Thread: Advanced Graphing app sometimes fails to find POI (/thread-17732.html) |
Advanced Graphing app sometimes fails to find POI - Wes Loewer - 11-21-2021 07:35 PM I noticed that the Advanced Graphing app fails to find extrema and inflections in the fairly basic function: Y=e^(-X)*(X+3) or its inverse. However, Y=2^(-X)*(X+3) and Y=3^(-X)*(X+3) work fine. It seems to be an integer verses decimal issue as Y=2.001^(-X)*(X+3) also fails. RE: Advanced Graphing app sometimes fails to find POI - roadrunner - 11-22-2021 06:05 PM You may be right on that because: Y=((419314/154257))^(-X)*(X+3) works. -road RE: Advanced Graphing app sometimes fails to find POI - KlaasKuperus - 11-22-2021 08:30 PM Thanks, Wes. We will look into this. RE: Advanced Graphing app sometimes fails to find POI - Wes Loewer - 11-23-2021 03:18 PM (11-22-2021 08:30 PM)KlaasKuperus Wrote: Thanks, Wes. We will look into this. The bug seems to have been introduced early on in the firmware. beta version 2013-11-20 (rev 5410) worked beta version 2013-11-22 (rev 5440) fails |