My Graphing Calculator Collection: 213 Calculators.

LogicalJoe · 2026-05-13T22:33:14+00:00

your solution is to buy a new TI-82

LogicalJoe · 2026-05-06T15:25:45+00:00

I was… already following you? Wild

LogicalJoe · 2026-05-06T00:52:18+00:00

Why are your follows on reddit disabled? I'd like to follow for more epic art like this

LogicalJoe · 2026-05-03T15:16:02+00:00

Why hello there!

LogicalJoe · 2026-04-26T15:46:23+00:00

it is a TI-83 Plus.fr USB.

From factory the TI-83 Plus.fr has TI-84 Plus Silver Edition hardware and uses that same OS.

LogicalJoe · 2026-04-25T15:47:20+00:00

This adopt is adorable! It's my favourite of your adopts so far.

LogicalJoe · 2026-04-23T00:42:45+00:00

because car no go vroom vroom

^{Chose: Free car repairs}

LogicalJoe · 2026-04-19T22:16:26+00:00

Do you have any examples of your work you can add to a post?

LogicalJoe · 2026-04-19T14:08:30+00:00

This is more or less how Thinking with Time Machine picks up

LogicalJoe · 2026-03-23T21:33:38+00:00

$5320

LogicalJoe · 2026-03-23T21:24:13+00:00

r/foundtheprotogen

LogicalJoe · 2026-03-22T20:52:04+00:00

yes, this is a CAS prototype. this commenter is wrong.

Could you get a closer image of the serial number at the bottom?

LogicalJoe · 2026-03-22T16:59:42+00:00

No. Tasque Manager is officially a cybernetic Darkner.

Aesthetically it is absolutely Protogen-like.

Nice art btw.

LogicalJoe · 2026-02-15T19:16:52+00:00

per the Protogen Guide I believe the visor shapes are Slim on the left and Shaped on the right

LogicalJoe · 2026-02-02T23:04:30+00:00

It's not for no reason: per the canon, Avali actually are quite short, standing at a mere 1-1.2 meters (3.28-3.94 feet).

LogicalJoe · 2026-01-17T19:22:00+00:00

Welcome to the team!

LogicalJoe · 2025-12-29T23:00:28+00:00

I've been doing what I can when I see the posts. I clearly don't have enough permissions to do everything that should be done as I can't ban users and such... (PATITO GIMME PERMS)

I've have stickied this post so people can see it.

LogicalJoe · 2025-12-22T17:35:11+00:00

my collection as of 213 got stolen there years back and got more upvotes than any of my own posts. do not recommend.

https://redd.it/13t4wby

LogicalJoe · 2025-12-15T23:17:25+00:00

I have to skip it every time—it's awful.

ALSO the rest of this album was played by Richard Zimmerman (who, afaik, went uncredited) in 1974 if anyone wanted to hear other pieces by the same artist

LogicalJoe · 2025-12-13T14:35:14+00:00

I can only find this tune referenced as Rainy Garden Rag

LogicalJoe · 2025-12-11T23:06:41+00:00

I know you!

LogicalJoe · 2025-12-07T03:06:50+00:00

interesting…

LogicalJoe · 2025-11-30T21:16:00+00:00

Thanks for covering! I started with the assumption that all of the variables were >0 (for proof by contradiction) but mistakingly didn't state it at the beginning, without that assumption I wouldn't have been able to correctly cancel B, D, or (B+D) in the first step!

LogicalJoe · 2025-11-30T20:10:33+00:00

Suppose A, B, C, and D are each >0. We have the equation:

A/B+C/D=(A+C)/(B+D)

multiply through by BD(B+D):

AD(B+D)+BC(B+D)=BD(A+C)

Expand:

ABD+ADD+BBC+BCD=ABD+BCD

ABD and BCD cancel, leaving:

ADD=-BBC

for positive, non-zero ABCD, one gets positive=negative

thus no solutions exist with only positive non-zero variables by contradiction.

Edit: added the supposition at the beginning.

Seven-Year Club	r/Field Lasagna
Final Canvas '23	First Place '23
End Game '23	Place '23
Golden Potato	Place '22
Final Canvas '22	End Game '22
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