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Casio FX991EX
07-15-2018, 11:51 AM
Post: #18
RE: Casio FX991EX
(07-15-2018 09:17 AM)Tugdual Wrote:  The solar cell is a disappointment. If you remove the LR44 battery the calculator will power up
and perform basic calculations but a sum will shut it down.

Even under good light ?
Is it possible it were still doing sum but don't have the juice to show it ? :-D

Anyway, solar + battery is better than battery alone.

My Casio FX-115MS had a dead battery, but still work under good light.
The back is somehow stuck even with all 3 screws removed (glued stuck ?)
Cannot replace battery without breaking the calculator ...

FX-115MS also had some weird precedence, had FX-991EX fixed it ?

Keys: 6 / 2 ( 1 + 2 ) ==> 1 ?
Keys: SQRT 6 RCL Y ==> sqrt(6 * y) instead of sqrt(6) * y

Keys: SIN ( 30 DEGREE ) SQR ==> 0 ?

Above actually does sin(30 ^ 2) = sin(900) = sin(0) = 0
To do sin(30) ^ 2, had to do ( SIN 30 DEGREE ) SQR ==> 0.25
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Messages In This Thread
Casio FX991EX - Tugdual - 07-12-2018, 08:09 PM
RE: Casio FX991EX - Csaba Tizedes - 07-12-2018, 08:28 PM
RE: Casio FX991EX - Tugdual - 07-12-2018, 11:08 PM
RE: Casio FX991EX - brickviking - 07-14-2018, 03:24 AM
RE: Casio FX991EX - Csaba Tizedes - 11-06-2018, 10:57 AM
RE: Casio FX991EX - klesl - 11-07-2018, 05:28 PM
RE: Casio FX991EX - Csaba Tizedes - 11-07-2018, 07:03 PM
RE: Casio FX991EX - brickviking - 11-07-2018, 08:31 PM
RE: Casio FX991EX - lrdheat - 07-12-2018, 10:03 PM
RE: Casio FX991EX - Albert Chan - 07-14-2018, 12:21 AM
RE: Casio FX991EX - ijabbott - 07-14-2018, 02:12 AM
RE: Casio FX991EX - Albert Chan - 07-14-2018, 03:32 AM
RE: Casio FX991EX - ijabbott - 07-14-2018, 08:48 AM
RE: Casio FX991EX - Albert Chan - 07-14-2018, 12:00 PM
RE: Casio FX991EX - ijabbott - 07-14-2018, 12:38 PM
RE: Casio FX991EX - grsbanks - 07-15-2018, 04:58 PM
RE: Casio FX991EX - ijabbott - 07-15-2018, 05:04 PM
RE: Casio FX991EX - Albert Chan - 07-14-2018, 05:08 PM
RE: Casio FX991EX - lrdheat - 07-15-2018, 12:43 AM
RE: Casio FX991EX - lrdheat - 07-15-2018, 12:45 AM
RE: Casio FX991EX - lrdheat - 07-15-2018, 01:09 AM
RE: Casio FX991EX - John Keith - 07-15-2018, 12:21 PM
RE: Casio FX991EX - Tugdual - 07-15-2018, 07:58 AM
RE: Casio FX991EX - Tugdual - 07-15-2018, 09:17 AM
RE: Casio FX991EX - Albert Chan - 07-15-2018 11:51 AM
RE: Casio FX991EX - ijabbott - 07-15-2018, 04:39 PM
RE: Casio FX991EX - ijabbott - 07-15-2018, 04:51 PM
RE: Casio FX991EX - Albert Chan - 07-15-2018, 05:39 PM
RE: Casio FX991EX - ijabbott - 07-15-2018, 07:53 PM
RE: Casio FX991EX - rprosperi - 07-16-2018, 12:41 AM
RE: Casio FX991EX - Steve Simpkin - 07-16-2018, 02:58 PM
RE: Casio FX991EX - Albert Chan - 07-16-2018, 03:54 PM
RE: Casio FX991EX - Tugdual - 07-16-2018, 09:33 AM
RE: Casio FX991EX - Albert Chan - 07-16-2018, 11:53 AM
RE: Casio FX991EX - Albert Chan - 08-09-2018, 06:15 PM
RE: Casio FX991EX - rprosperi - 08-09-2018, 06:35 PM
RE: Casio FX991EX - ijabbott - 08-09-2018, 07:33 PM
RE: Casio FX991EX - Albert Chan - 08-09-2018, 08:23 PM
RE: Casio FX991EX - Albert Chan - 09-06-2018, 11:19 PM
RE: Casio FX991EX - Eddie W. Shore - 11-07-2018, 02:22 AM
RE: Casio FX991EX - Csaba Tizedes - 11-07-2018, 12:30 PM
RE: Casio FX991EX - edryer - 12-28-2018, 09:16 PM
RE: Casio FX991EX - Albert Chan - 12-28-2018, 11:04 PM
RE: Casio FX991EX - Luigi Vampa - 12-29-2018, 01:29 AM
RE: Casio FX991EX - Hlib - 10-31-2019, 08:46 PM
RE: Casio FX991EX - ijabbott - 11-01-2019, 09:46 PM



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