I Built a Calculator in Survival Minecraft

This is such an amazing video. It was an absolute pleasure to help! Making a calculator in ~2 weeks is no easy feat, and the final result looks amazing! Proud of you bro!

Dedication is absolutely unreal.

18:28 “Yeah, he’s a genius, we’ll leave it at that… in the meantime I’ve made these two buttons-“ lmao

imagine if rain destroyed redstone.

Rek now holds the record for calculated any% with no speedrun calculator 🤣

This guy is the definition of “never ever give up even if it takes 71 years.”

Bru, I can't even figure out how to make a hidden door, or even how to turn off a Redstone torch without making it look stupid.

6:30 as an amateur programmer I wanted to say the reason this works and with only four blocks is a Karnaugh Map. Basically you make three columns like below. The first two are inputs, and the third is output. A B / 0 0 X 0 1 X 1 0 X 1 1 X Program the X’s as the values (0/1) that you need, then convert that into a K-Map like so. Let’s say our “X” row is 0, 1, 1, 0. You then would make a box like below, with the proper coordinate values. The corner is blank, so I’ll use a “/“. The values with quotation marks are coordinate values. / “0” “1” “0” 0 1 “1” 1 0 With this, you then use logical operators to convert the above K-Map into a logical expression. I’m not going to go into that here, but the short answer to my example is that the output is 1 if and only if the operators are different, symbolized as -(A=B) Also before anyone says anything, i did in fact go down the femboy programmer pipeline:3

As an IT technician, it was really fun to see rekrap learn how binary code works and such.

That's why, I love redstone. First, it's really frustrating, but then at the end, it looks really fancy and you feel really proud that you have built this.

15:43 "adventuring thru the jungles of my redstone wiring" had me ROLLING😭

This is actually crazy. So much dedication and determination. Keep it up Rek!

All the leaf scaffolding looks super cool. even though it's wasn't on purpose, they look like really cool vines snaking around the machine. Awesome job on the calculator Rekrap! A lesser man (such as myself) would have given up and chucked his computer out the window!

18:55 Never seen Rek's water bucket out of his hotbar until today. Shows how incredibly serious he is about building this 😅

This guy just casually learned how calculators work in a couple weeks and made one in a video game. Props to you my guy!

this video is just absolutely amazing. i just have no words for it. its just insane how someone like rek can do this in ~2 weeks IN SURVIVAL? big big props for u my man keep it tf uppp <333

As a computer engineer it is really fun watching rekrap learn the basics of digital logic.

It’s actually really surprising how much doing feats like this can teach you about not just red stone, but things like binary coding and logic gates, things real calculators and even smartphones rely on to function. I would 100% recommend people do things like this, maybe just in creative mode though.

this is such an amazing idea for a video! best minecraft video ive ever seen on youtube! wildly different tactic to beat the game, but also very intertaining as a redstone fan!

I’m a freshman in computer engineering, I found this video super interesting! Im taking a course which is an intro to digital logic (among a few other things), and I found it super cool how you basically learned and applied digital logic here. Massive respect for the division, floating point division is a pain (doing one problem takes me like 5 minutes). This inspires me, I might boot up Minecraft and try designing an ALU (we already designed one for a homework assignment, but it would be fun to implement in Minecraft)