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Casio FX991EX
07-12-2018, 10:03 PM
Post: #3
RE: Casio FX991EX
The 991EX is a nice calculator. My only wishes would be that it could retain the work when turned off. Turning it off clears the history. Also, when creating a table of x and f(x), I wish that that "f(x)" would still be available to utilize in the calculation mode. Instead, one must retype the equation of interest.

A neat item, at least on the 991EX version, is that one can solve a derivative to =0, so as to find a maximum or minimum of a function! Likewise, one can solve an integral to equal some value of interest, say, "3", where one of the interval points over which the integral is evaluated, is defined.
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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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