The new TI-82 Advanced Edition Python

[Namir]

I just got from Amazon France the TI-82 Advanced Edition Python. The keyboard isin French and so is the initial men system. I switched it to English.

The machine looks interesting. The first (and only thing I tested so far) thing I tested is the Integration. I used the improper Integrals that Valentin Albillo had suggested. The calculator gave answers but they were accurate to 4 or 5 decimal places!! I found it to be interesting!

More about this calculator later!

Namir

[Namir]

Programming the TI-82 in Python has it's own style. The Python sysytem has menus that allow you to insert various types of components. The Fns menu allow you to define new functions, insert control structure, compare values, work with lists, convert types, perform I/O, and acess the math, random, and time modules. The charcaters menu allows you to insert letters and symbols. The Tools menu helps with editing. The Run menu allows you to run the current program. The Fiels menu helps to edit the current program manage program files.

Overall, it is a bit slower to enter and edit a Python program using the calculator menus.

Namir

[Eddie W. Shore]

I read that the firmware on the TI-82 Advanced Edition Python is not able to be upgraded and the Python language is limited compared to the TI-83 Premium/TI-84 Plus CE Python.

[Valentin Albillo]

.
Hi, Namir,

(12-08-2023 03:27 PM)Namir Wrote:  I just got from Amazon France the TI-82 Advanced Edition Python. [...] The first (and only thing I tested so far) thing I tested is the Integration. I used the improper Integrals that Valentin Albillo had suggested.

Congratulations on your acquisition and thanks for your interest in the (difficult) test integrals I posted. For the record and for the benefit of readers who might want to try them using their models or programs, a few are included at the end of this message.

Quote:The calculator gave answers but they were accurate to 4 or 5 decimal places!! I found it to be interesting!

You can up the interest an order of magnitude or two by posting the precise results you get and the timing, so comparisons with other models/programs will be possible. Any further comments by you would be appreciated as well.

Thanks in advance and regards.
V.

---

A few difficult integrals:
      
• Do not use CAS or any symbolic integration, it would be pointless, without merit and would demonstrate nothing, you should stick to purely numeric results (not evaluation of a symbolic integration.)
        
• Do not perform manual substitutions or convert the integrand and iimits of integration to something else, the machine must do all the work without help from you, just give it the unmodified integrand, the limits of integration, and a few settings if needed (FIX/SCI/ENG mode or # of subintervals or some desired relative/absolute error) and that's it.
  
  
  Code:
  

         / 1
I1 =   |   cos(x)*ln(x) .dx =  -0.946083070367183014941
       / 0 

       / 1
I2 =   |   1/√x .dx =  2 
       / 0
  Code:
  

         / 1
I3 =   |   Ln(Gamma(x)) .dx = 0.9189385332046727417803297364
       / 0 

       / 1
I4 =   |   1/√(-Ln(x)) .dx = 1.7724538509055160272981674833411
       / 0
  Code:
  

         / 1
I5 =   |   x^(-0.99) .dx = 100
       / 0 

       / 1
I6 =   |   sin(tan(tan(∏x)))^2 .dx = 0.39099216215153045453170988
       / 0
  Code:
  

         / 1
I7 =   |   exp(x+sin(exp(exp(exp(x+1/3))))) .dx = 2.996339811976535379182861556235501887668...
       / -1
  Code:
  

          / Inf
I11 =   |     sin(x)*sin(x^2) .dx = 0.491695777984
        / 0 

        / 1
I12 =   |    cos(ln(x)/x)/x .dx = 0.323367431678
        / 0
  Code:
  

          / 1
I13 =   |    sin(1/x)/x .dx = 0.624713256428
        / 0 

        / 2
I14 =   |    x^(Pi/4)*sin(Pi/4/(2-x) .dx = 1.01123909053  (a relatively easy one)
        / 0

[Namir]

(12-10-2023 02:37 AM)Valentin Albillo Wrote:  .
Hi, Namir,

(12-08-2023 03:27 PM)Namir Wrote:  I just got from Amazon France the TI-82 Advanced Edition Python. [...] The first (and only thing I tested so far) thing I tested is the Integration. I used the improper Integrals that Valentin Albillo had suggested.

Congratulations on your acquisition and thanks for your interest in the (difficult) test integrals I posted. For the record and for the benefit of readers who might want to try them using their models or programs, a few are included at the end of this message.

Quote:The calculator gave answers but they were accurate to 4 or 5 decimal places!! I found it to be interesting!

You can up the interest an order of magnitude or two by posting the precise results you get and the timing, so comparisons with other models/programs will be possible. Any further comments by you would be appreciated as well.

Thanks in advance and regards.
V.

---

A few difficult integrals:
      
• Do not use CAS or any symbolic integration, it would be pointless, without merit and would demonstrate nothing, you should stick to purely numeric results (not evaluation of a symbolic integration.)
        
• Do not perform manual substitutions or convert the integrand and iimits of integration to something else, the machine must do all the work without help from you, just give it the unmodified integrand, the limits of integration, and a few settings if needed (FIX/SCI/ENG mode or # of subintervals or some desired relative/absolute error) and that's it.
  
  
  Code:
  

         / 1
I1 =   |   cos(x)*ln(x) .dx =  -0.946083070367183014941
       / 0 

       / 1
I2 =   |   1/√x .dx =  2 
       / 0
  Code:
  

         / 1
I3 =   |   Ln(Gamma(x)) .dx = 0.9189385332046727417803297364
       / 0 

       / 1
I4 =   |   1/√(-Ln(x)) .dx = 1.7724538509055160272981674833411
       / 0
  Code:
  

         / 1
I5 =   |   x^(-0.99) .dx = 100
       / 0 

       / 1
I6 =   |   sin(tan(tan(∏x)))^2 .dx = 0.39099216215153045453170988
       / 0
  Code:
  

         / 1
I7 =   |   exp(x+sin(exp(exp(exp(x+1/3))))) .dx = 2.996339811976535379182861556235501887668...
       / -1
  Code:
  

          / Inf
I11 =   |     sin(x)*sin(x^2) .dx = 0.491695777984
        / 0 

        / 1
I12 =   |    cos(ln(x)/x)/x .dx = 0.323367431678
        / 0
  Code:
  

          / 1
I13 =   |    sin(1/x)/x .dx = 0.624713256428
        / 0 

        / 2
I14 =   |    x^(Pi/4)*sin(Pi/4/(2-x) .dx = 1.01123909053  (a relatively easy one)
        / 0

Here are the results of testing the above integrals:

I1: -0.9460814174 with 4 correct decimal places
I2: 1.999994424
I3: calcultor has no gamma function
I4: 1.772446281 with 4 correct decimal places
I5: Error message
I6: with 4 correct decimal places
I7: Cannot enter formula. Limit to telecoped exp()
I11: No infinity
I12: Error message after several seconds
I13: Error message after several seconds
I14: 1.010951793 correct to 2 decimal places

The timing for answers was about 4 seconds. The TI-82 did a modest effort with the integrals, sacrificing accuracy for solution time.

Namir

[StephenG1CMZ]

FWIW on Numworks (Calculation, Calculus) I get:
I1 = -0.9460830704
I2 = 2
I3 undef (parsing gamma as variables, the python gamma function is not seen)
I4 = 1.772453841
I5 undef
I6 syntax error (whats the symbol before the x?) (if thats a pi, then undef)
I7 undef (after about 1/2 minute*)
I11 undef
I12 undef
I13 undef
I14= 0.934444985 (not accurate)
on Numworks (integrand edited: Ln to ln,Pi to pi, retyping sqrt symbol)
(*timed on Chromebook, other results within about 1s)

[Namir]

Thanks Stephen for the timing. At leats the NumWorks is more popular than the relatively obscure TI-82 Advanced Edition. I might be the only site regular member that has that calculator since I bought it from France.

Namir

[Pierre]

(12-11-2023 11:51 AM)Namir Wrote:  Thanks Stephen for the timing. At leats the NumWorks is more popular than the relatively obscure TI-82 Advanced Edition. I might be the only site regular member that has that calculator since I bought it from France.

Namir

Désolé Namir mais je possède aussi une TI-82 Advanced Edition Python !
(I had to answer in French!)

[carey]

(12-11-2023 11:51 AM)Namir Wrote:  ...the relatively obscure TI-82 Advanced Edition. I might be the only site regular member that has that calculator since I bought it from France.

Namir

Namir,

Based on your mention of the TI-82 Advanced Edition Python in this thread, I went ahead and ordered one from the Amazon.fr site and it arrived today shipped from Poland.

It's a very cool calculator with TI-84Plus CE Python functionality (or most of it) in a regular TI-84 Plus form factor. I changed the OS language to English, and vague recollections of old elementary school French lessons are enough to translate the French key labels.

Thanks for starting this thread!
Carey

[Namir]

Well Carey, you and I can start a new TI-82 Advanced Edition club .. just kidding.

I did find a solve() function by scrolling through the catalogue of functions. The syntax for using solve is:

solve(<expressio>,variable name,initial guess)

for example, solve(e^X-3*X^2,X,4) yields 3.773.

Namir

[carey]

(12-14-2023 02:53 AM)Namir Wrote:  I did find a solve() function by scrolling through the catalogue of functions. The syntax for using solve is:

solve(<expressio>,variable name,initial guess)

for example, solve(e^X-3*X^2,X,4) yields 3.773.

Namir,

Thank you for sharing the solve() function and syntax! Yes, it seems that this function has been preserved through the various models as I see it's also on my TI-83 Plus SE (a nice version in a great form factor with 1.5MB flash memory). Btw, it appears that 3.773 should be 3.733.

The attached pic shows the 1st 3 iterates of the same function and initial guess obtained by writing the recursion equation for Newton's method directly on the TI-82 Advanced Edition Python without programming. Iterates are obtained by successively pressing "entrer" (Enter) and updated values are stored in "rep" (Ans).

For decades I ignored the TI83/84 series until this year when my son was required to use one for his h.s. math class. These models are easy to use and surprisingly (to me) powerful despite missing some advanced functions.

[floppy]

(12-14-2023 05:26 AM)carey Wrote:  For decades I ignored the TI83/84 series until this year when my son was required to use one for his h.s. math class. These models are easy to use and surprisingly (to me) powerful despite missing some advanced functions.

Advanced functions are perhaps now on the way since Forth is available? https://www.hpmuseum.org/forum/thread-20867.html (I will check this the next few weeks since I bought a TI 84 Plus and PC links)

[Namir]

Thanks for the cool picture!!!

[Namir]

(12-13-2023 04:16 PM)Pierre Wrote:  

(12-11-2023 11:51 AM)Namir Wrote:  Thanks Stephen for the timing. At leats the NumWorks is more popular than the relatively obscure TI-82 Advanced Edition. I might be the only site regular member that has that calculator since I bought it from France.

Namir

Désolé Namir mais je possède aussi une TI-82 Advanced Edition Python !
(I had to answer in French!)

Hello Pierre! I am not surprised you have a TI-82 since it is avaible in France. I guess I ment in my original comment that I was perhaps the only (USACANADA) resident who visits this web site who had a TI-92. Now I know there is another US member.

Namir

[Pierre]

(12-14-2023 09:29 PM)Namir Wrote:  Hello Pierre! I am not surprised you have a TI-82 since it is avaible in France. I guess I ment in my original comment that I was perhaps the only (USACANADA) resident who visits this web site who had a TI-92. Now I know there is another US member.

Namir

Hi Namir,
Of course, I couldn't miss a French version of TI.
But since I tried HP I don't use my TI calculators much anymore...

[floppy]

Best review I could find: https://tiplanet.org/forum/viewtopic.php?f=41&t=24977
Let translator run over it in your language.

Looks like a calculator box with keys to lye down on a table for school and exam purpose: limited use for projects at school (therefore at home). Kind of "enough" hardware for school. However, since computers with graphic and interface are not too expensive, thats perhaps ok. As a after-school person, no interest for me to buy such hardware.

[Eddie W. Shore]

(12-14-2023 02:53 AM)Namir Wrote:  Well Carey, you and I can start a new TI-82 Advanced Edition club .. just kidding.

I did find a solve() function by scrolling through the catalogue of functions. The syntax for using solve is:

solve(<expressio>,variable name,initial guess)

for example, solve(e^X-3*X^2,X,4) yields 3.773.

Namir

I have a TI-83 CE Premium Python Edition, can I join?

I also frequent TI-Planet (thanks to Google for the translate tool).

[Namir]

(12-15-2023 01:35 PM)Eddie W. Shore Wrote:  

(12-14-2023 02:53 AM)Namir Wrote:  Well Carey, you and I can start a new TI-82 Advanced Edition club .. just kidding.

I did find a solve() function by scrolling through the catalogue of functions. The syntax for using solve is:

solve(<expressio>,variable name,initial guess)

for example, solve(e^X-3*X^2,X,4) yields 3.773.

Namir

I have a TI-83 CE Premium Python Edition, can I join?

I also frequent TI-Planet (thanks to Google for the translate tool).

You are most welcome!

[carey]

(12-14-2023 02:53 AM)Namir Wrote:  Well Carey, you and I can start a new TI-82 Advanced Edition club .. just kidding.

(12-15-2023 01:35 PM)Eddie W. Shore Wrote:  I have a TI-83 CE Premium Python Edition, can I join?

(12-14-2023 02:53 AM)Namir Wrote:  You are most welcome!

Eddie, you realize this means you have to call the 1st meeting! :)

Does the TI-83 CE Premium Python edition have any features not found in the TI-84 CE Python edition or are they 1:1 replacements except for the model number and keyboard language?

Thanks.

[critor]

(12-17-2023 09:45 PM)carey Wrote:  Does the TI-83 CE Premium Python edition have any features not found in the TI-84 CE Python edition or are they 1:1 replacements except for the model number and keyboard language?

The TI-83 Premium CE is better than the TI-84 Plus CE.
It includes a QPiRac exact calculation engine, where the TI-84 Plus CE only knows about Q :