this post was submitted on 27 Jul 2026
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xkcd #3277: Forth (imgs.xkcd.com)
submitted 22 hours ago by xkcdbot@lemmy.world to c/xkcd@lemmy.world
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xkcd #3277: Forth

Title text:

I NOTATION POLISH REVERSE ❤️

Transcript:

Transcript will show once it’s been added to explainxkcd.com

Source: https://xkcd.com/3277/

explainxkcd for #3277

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[–] hayvan@piefed.world 3 points 22 hours ago (1 children)

RPN breaks my brain, I need to refresh myself.

[–] psycotica0@lemmy.ca 2 points 12 hours ago (1 children) 
3
3 5
3 5 8
3 5 8 +
3 13
3 13 2
3 13 2 *
3 26
3 26 17
3 26 17 36
3 26 17 36 9
3 26 17 36 9 /
3 26 17 4
3 26 17 4 - 
3 26 13
3 26 13 +
3 39
3 39 +
42

Or

3 + (((5 + 8) * 2) + (17 - (36 / 9)))

[–] psycotica0@lemmy.ca 2 points 12 hours ago (1 children)

To be fair, my example was illustrative. The equivalent would simply be:

3 5 8 + 2 * 17 36 9 / - + +

[–] hayvan@piefed.world 1 points 5 hours ago

Thanks.