TI36X Integral help, please

11152022, 05:07 AM
Post: #1




TI36X Integral help, please
Hi all.
I go into Table define f(x) as 3/sqrt(1x^2) hit Integral lower limit=0.5 upper limit=0.5 in the integrand box, I press Table 1 ( f( x ) [without spaces, of course] ENTER Immediately I get MEMORY LIMIT Error. How could I set this up correctly so I can just put f(x) as the integrand and have it evaluated? 

11152022, 08:04 AM
Post: #2




RE: TI36X Integral help, please
I did it with a TI30X Pro which has near to 100% the same functionality:
Integral  Lower limit 0.5  upper limit 0.5  function: 3/SQRT(1x²): Nearly immediately gives as result 3.141592654. Why did you press table 1? 

11152022, 08:41 AM
Post: #3




RE: TI36X Integral help, please  
11152022, 05:20 PM
Post: #4




RE: TI36X Integral help, please
If I understand you correctly, inputting table choice 2, f( into the integral on the calculating screen where you then complete the f( with f(x) should work!


11152022, 08:56 PM
(This post was last modified: 11152022 09:08 PM by ijabbott.)
Post: #5




RE: TI36X Integral help, please
(11152022 05:20 PM)lrdheat Wrote: If I understand you correctly, inputting table choice 2, f( into the integral on the calculating screen where you then complete the f( with f(x) should work! That would be table choice 1:f( on TI36X Pro or TI30X Pro MultiView, and table choice 2:f( on TI30X Pro MathPrint. I have tried the integral with the defined f(x) on all three models and it worked fine on all of them. (If it makes any difference, my TI36X Pro and TI30X Pro MultiView are both hardware revision B (assuming the letter on the end of the batch number is the hardware revision).) — Ian Abbott 

11152022, 10:23 PM
Post: #6




RE: TI36X Integral help, please
(11152022 08:56 PM)ijabbott Wrote: I have tried the integral with the defined f(x) on all three models and it worked fine on all of them. My results: Cs. 

11162022, 03:25 AM
Post: #7




RE: TI36X Integral help, please
What would happen on the 36 if you placed the function in table choice 1 instead of 2?


11162022, 04:07 AM
Post: #8




RE: TI36X Integral help, please
…and then use 2 in calculating scree to put f(x) into the integrand.
[/align] 

11162022, 03:40 PM
Post: #9




RE: TI36X Integral help, please
(11152022 08:56 PM)ijabbott Wrote:(11152022 05:20 PM)lrdheat Wrote: If I understand you correctly, inputting table choice 2, f( into the integral on the calculating screen where you then complete the f( with f(x) should work! So that I understand the process, what are the steps to accomplish what my original post is referring to, what are the steps? Thanks 

11162022, 04:50 PM
Post: #10




RE: TI36X Integral help, please
I was writing about the MathPrint…no longer have the 36X.


11162022, 05:12 PM
Post: #11




RE: TI36X Integral help, please  
11162022, 05:23 PM
Post: #12




RE: TI36X Integral help, please
Hi all.
I think I discovered the glitch about my OP. If I enter the expression as √(3/(1x SQ)), integration cooperates. But, if I use the MathPrint fraction template instead of just /, BOOM! MEMORY ERROR. I wonder why using the MathPrint fraction template causes the problem. Anyone know? 

11162022, 09:04 PM
(This post was last modified: 11162022 09:04 PM by ijabbott.)
Post: #13




RE: TI36X Integral help, please
(11152022 10:23 PM)Csaba Tizedes Wrote:(11152022 08:56 PM)ijabbott Wrote: I have tried the integral with the defined f(x) on all three models and it worked fine on all of them. I was defining f(x) with the normal division operator rather than with the fraction bar, and I didn't get the MEMORY LIMIT error. I do get the MEMORY LIMIT error when defining f(x) with the fraction bar. I don't know why it should make a difference, but it does on the older model. I guess that is one more bug they fixed during development of the MathPrint model. — Ian Abbott 

11172022, 01:28 AM
(This post was last modified: 11172022 01:29 AM by Matt Agajanian.)
Post: #14




RE: TI36X Integral help, please
(11162022 09:04 PM)ijabbott Wrote:(11152022 10:23 PM)Csaba Tizedes Wrote: My results: I’m considering the 30X MathPrint. So, from what you’re saying, the 30X has the fixed division template so I don’t need to use the / operator. Right? 

11192022, 12:14 AM
Post: #15




RE: TI36X Integral help, please
(11172022 01:28 AM)Matt Agajanian Wrote:(11162022 09:04 PM)ijabbott Wrote: I was defining f(x) with the normal division operator rather than with the fraction bar, and I didn't get the MEMORY LIMIT error. I do get the MEMORY LIMIT error when defining f(x) with the fraction bar. I don't know why it should make a difference, but it does on the older model. I guess that is one more bug they fixed during development of the MathPrint model. Correct. As shown in Csaba's video, the TI30X Pro MathPrint handles the integral fine with f(x) defined using the fraction template. — Ian Abbott 

11192022, 04:43 AM
Post: #16




RE: TI36X Integral help, please
Looking forward to checking out the CASIO fx991CW. It is an updated 991EX, faster, uses a smaller epsilon in derivatives, integrals, and solve if I understand the specifications correctly. It was listed for October, but seems only available in Southeast Asia at this time…


11202022, 12:25 AM
Post: #17




RE: TI36X Integral help, please
(11192022 04:43 AM)lrdheat Wrote: Looking forward to checking out the CASIO fx991CW. It is an updated 991EX, faster, uses a smaller epsilon in derivatives, integrals, and solve if I understand the specifications correctly. It was listed for October, but seems only available in Southeast Asia at this time… Looked at a JPEG. Amusing layout. Quite genius. It’s excellent that most used utilities are keyboard accessible instead of hidden in menus. The dark circular keys are reminiscent of the 70s look of calculators. Curious thing. The TI30X is available as an import. So, why can’t we order this as an import even though it’s an overseas product? 

11202022, 01:15 AM
(This post was last modified: 11202022 01:15 AM by Eddie W. Shore.)
Post: #18




RE: TI36X Integral help, please
I used the fraction bar for the problem above and it worked for:
TI30X Pro MathPrint (date code L0122C) But not for: TI36X Pro (date code L0421E, gray arithmetic keys with white font) 

« Next Oldest  Next Newest »

User(s) browsing this thread: 1 Guest(s)