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Summation Bug? FW 2017 07 10 (12066)
10-04-2017, 11:23 PM (This post was last modified: 10-04-2017 11:39 PM by ekeppel.)
Post: #1
Summation Bug? FW 2017 07 10 (12066)
Hi Everyone,

Today I entered a summation in CAS / Textbook Mode using an upper-case 'X' as the variable instead of the lower-case 'x' that CAS prefers. When I hit enter to evaluate it, the calculator crashed and rebooted itself. I would love if someone could please check and see if this is just my calculator that has an issue or if it's a more general bug. I have the Rev C hardware in case that matters. :-)

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In CAS textbook mode, try entering a summation of (1/X^2) with an index of 1 going to infinity. Use an upper-case X as the variable in the expression (ANY upper-case variable causes this for me). When I hit enter to evaluate this, my calculator screen goes black, then reboots. Undecided

Even if I'm doing something that isn't 'allowed' or 'correct' by the calculator's nomenclature, it surely should never simply crash like that, should it?

Can anyone else reproduce this? I did a full factory reset from the diagnostic menu and still find the same behavior.

Thanks in advance,
Eric
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10-05-2017, 04:49 AM
Post: #2
RE: Summation Bug? FW 2017 07 10 (12066)
Confirmed.
Arno
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10-05-2017, 11:16 AM
Post: #3
RE: Summation Bug? FW 2017 07 10 (12066)
Fixed in source code.
There was an infinite loop trying to purge X in a residue computation.
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10-05-2017, 05:38 PM
Post: #4
RE: Summation Bug? FW 2017 07 10 (12066)
(10-05-2017 11:16 AM)parisse Wrote:  Fixed in source code.
There was an infinite loop trying to purge X in a residue computation.

Wow, that was super fast. Thanks! :-)

Eric
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10-05-2017, 11:43 PM
Post: #5
RE: Summation Bug? FW 2017 07 10 (12066)
Yes, Bernard is always super fast. Now we can wait for if any™. :-)

Geocaching Coords Solver, Number of triangles Puzzle
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