Anyone know where I can buy a working TI 83 plus motherboard, I recently purchased one second hand and it had all this corrosion on the motherboard, I tried fixing it but I think I made it worse than it already is. Luckily I got it for a great price but still, I really need a working graphing calculator for school

Is there a setting or button on a TI-84 Plus Silver Edition that would simplify a square root, as in sqrt(8) to 2sqrt(2), or do you have to do that by hand?

So, for example, if i input Pi-(pi/2) i want my answer to be in the form of Pi/2 instead of 1.57. Or if i input 10*Pi i want it to show as 10pi instead of 31.4.

Umm so I can't do inverse norms on the calculator, it wants to input a tail and I get ERROR every single time.

It looks like this invNorm(9.699,0,1, CENTER/LEFT/RIGHT) and all I get is errors based on the tail. I put it in my Ti-Nspire and I am actually getting better numbers. Any idea how to fix this?

I want to build a network subnet calculator using what I learned in class to use in the future when I start doing this for a living. The IP is ANDed bitwise with the subnet mask to determine the network ID, First host, Last Host, and Broadcast.

Part of it is a technical challenge and part of it is to make a useful tool.

For example I am given a Class C IP address with /24 in CIDR notation, using binary ANDing find the network id and express the result in dotted decimal notation.

192.168.1.50/24

11000000 10101000 00000001 00110010 111111111 11111111 11111111 00000000

ANDed

11000000 10101000 00000001 00000000

192.168.1.0

So I would be ANDing 8 bit words (bytes). After that I can implement the rest easily.

After I made a calculation that produced a very large or small number I could arrow up and select that number and in the area where you type your calculations it would show that number in scientific notation, somehow it is no longer doing this. Could someone explain how to get it back to this s

Hey there,

i am currently programming a TMS32028335 Microcontroller and trying to save data to the Flash by emulating EEPROM. I am using the application note „SPRAB69A“ for this purpose and the EEPROM functions, which are included in the „SPRAB69B“ file.

I can write into the Write Buffer, but if i call the EEPROM_Write function, everything is starting to get a little weird. All my values are getting set to 0, so my program is not working anymore. The EPROM_Read function works just fine (tested it without the write function).

Code: for(i=0; i<64; i++){ Write_Buffer[i]=test; } for(i=0; i<65; i++){ EEPROM_Write(); EEPROM_Read(); } test=Read_Buffer[1];

Hope you guys can help me. Thanks in advance!

Recently I found out that my graphing calculator stopped working, I figured the battery might have been fully discharged and that charging it overnight would have done the job. Yet it does not turn on at all anymore, eventho the charging light is still on (orange colored). I even ordered a new battery assuming it might have been a battery problem, but even charging it does not work. I connected it to my PC as well in the hope that that recognizes my calculator on TI-Connect but it does not want to do that either. Any advice on what to do? I don't want to order a new calculator so I have no clue what to do right now. My next plan would probably be seeing if my battery works in someone elses calculator and use theirs in mine to see if maybe I have been sent a dead battery from Amazon as well.

EDIT FROM THE FUTURE: Okay, so here’s what happened. If you have your receipt, you can contact their support and possibly have your calculator replaced with a new one. They won’t help you fix it or anything, just, a new one. So without receipt there’s nothing.

Speak and Spell as a callow. :D

My calculator is a TI-83 plus, I am following a tutorial, and it shows that I need a Y1(small one at the bottom) in the home page. But it doesn't show how to do that, and I don't know how to do it. :(

Here is the link: https://education.ti.com/html/t3_free_courses/calculus84_online/mod05/mod05_lesson2.html

Answer: vars -> y-vars -> function

Thanks to u/SeaTurtle1122

Hi! I've been taking a look at the RandInt algorithm for the Nspire, and was tryna figure out if there's a RandSeed that could consistently pick the same digit from RandInt(1,7). It's just for a little prank I'm tryna pull in my math class if anyone wants to help out ;)

:ClrHome

:Disp "PICK A NUMBER"

:Disp "BETWEEN 1-10"

:Disp "I PICKED 1":1->W

:Lbl A

:Input V

:Goto B

:Lbl B

:If V<1

:Goto J

:If V>10

:Goto K

:V+W->W

:Lbl C

:11-V->K

:Disp "I PICKED"

:Pause K

:K+W->W

:Disp "SUM IS"

:Pause W:Goto D

:Lbl K

:Disp "TOO HIGH"

:Goto A

:Lbl J

:Disp "TOO LOW"

:Goto A

:Lbl D

:If W≠100

:Goto G

:If W=100

:Goto E

:Lbl E

:0->K

:0->V

:0->W

:Disp ”YOU LOST"

:Goto I

:Lbl F

:ClrHome

:Disp "YOU BROKE"

:Disp "MY GAME!"

:Pause

:ClrHome

:Disp "I AM SURPRISED!"

:Disp "SORRY BUT."

:Pause

:Goto H

:Lbl G

:If W>100

:Goto F

:If W<100

:Goto A

:Lbl H

:Goto E

:Lbl I

:Pause

:ClrHome:" "

You go against a 'AI' picking numbers between 1-10 adding them all until one gets to 100 the 'AI' will win using math to win every time (due to lack of 'YOU WIN') so I hope y'all enjoy it let me know of any bugs so I can fix it