CASIO 7500 giii
02-06-2021, 04:37 PM
Post: #1
 lrdheat Senior Member Posts: 679 Joined: Feb 2014
CASIO 7500 giii
Does the 7500 giii handle integrals that have a real solution, but have discontinuities either at an endpoint, or within the domain being considered? The fx-CG 50 has difficulties with this sort of thing. The TI 36X Pro can solve many of these problems. Wondering also if complex support of trigonometric functions has been added.
02-06-2021, 04:40 PM
Post: #2
 lrdheat Senior Member Posts: 679 Joined: Feb 2014
RE: CASIO 7500 giii
I meant to call it the 9750 giii
02-07-2021, 01:09 AM
Post: #3
 Dave Britten Senior Member Posts: 1,961 Joined: Dec 2013
RE: CASIO 7500 giii
I'm fairly certain that any difficulties present on the fx-CG50 will also be present on the fx-9750GIII, given that most of the underlying software is the same.
02-07-2021, 01:10 PM
Post: #4
 klesl Member Posts: 71 Joined: Mar 2016
RE: CASIO 7500 giii
02-07-2021, 01:47 PM
Post: #5
 Hlib Member Posts: 242 Joined: Jan 2015
RE: CASIO 7500 giii
@ lrdheat
If a singular point is contained within the integration interval, the 9750giii returns an error message. If the break point is at the edge of the interval and the limit of the function at this point has a finite limit, then the calculator can calculate this.
S(e^(1÷(X–2)),1,2)=0.148495...
S(e^(1÷(X–2)),2,3)=Ma ERROR
S(1÷X^2,0,1)=Time Out
S(sin X÷X,0,1)=0.946083...
S(sin X÷X,-1,1)=Ma ERROR
02-09-2021, 07:51 AM
Post: #6
 Csaba Tizedes Senior Member Posts: 495 Joined: May 2014
RE: CASIO 7500 giii
(02-06-2021 04:37 PM)lrdheat Wrote:  Does the 7500 giii handle integrals that have a real solution, but have discontinuities either at an endpoint, or within the domain being considered? The fx-CG 50 has difficulties with this sort of thing. The TI 36X Pro can solve many of these problems. Wondering also if complex support of trigonometric functions has been added.

Better if you write your own numerical integration routine...
Midpoint Riemann sum with interval mapping for CASIO fx-3650P
As I can see, the CASIO's routines not really ahead of a middle schooler's programming capabilities. They copy the methods directly from the classic numerical methods books, no any improvement or fresh idea...

Csaba
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