Nostr notes by Leo C. Stein

can you remind me — did we go over the Wallis-style product for ...

2024-12-23T19:40:24Z

In reply to nevent1q…5xjr
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can you remind me — did we go over the Wallis-style product for the lemniscate constant? I don't know how it would be derived, and why it's similar to the Wallis product for pi, and if there's a similar product for all the generalizations.

With the new code, outside and inside are programmed like this: ...

2024-10-28T18:15:47Z

In reply to nevent1q…mkem
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With the new code, outside and inside are programmed like this:

\def\elevenGon{
(0,3) -- (-2,3) -- (-3,1) -- (-3, 0) -- (-2,-2)
-- (-1,-3) -- (1,-4) -- (3,-4) -- (4,-3) -- (4,-1)
-- (2,2) -- cycle
}

\draw[black, thick, fill=yellow, fill opacity=0.6] \elevenGon;

\draw[thick, blue, fill=green, fill opacity=0.6]
decorate[decoration=cut equilateral]
{ \elevenGon };

And yields the attached image. I can send you the updated code if you'd like!

FYI I just learned how to use the "decorations" engine in ...

2024-10-28T18:14:31Z

In reply to nevent1q…r294
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FYI I just learned how to use the "decorations" engine in PGF to automate cutting out the equilateral triangles. Once I define that decoration, you only have to define the outside 11-gon (making sure to go counterclockwise).

1/

one of the removed triangles is not equilateral? A typo?

2024-10-28T07:08:03Z

In reply to nevent1q…es9d
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one of the removed triangles is not equilateral? A typo?

I am supposed to be writing GR homework solutions today, but ...

2024-10-26T20:12:13Z

In reply to nevent1q…n4np
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I am supposed to be writing GR homework solutions today, but I'm very close to being nerd-sniped ;)

I have been getting more and more proficient at TikZ, but ...

2024-10-26T20:07:37Z

In reply to nevent1q…wxt6
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I have been getting more and more proficient at TikZ, but it's still not like a first language.

If you want to be able to customize your triangle graph paper ...

2024-10-26T17:37:18Z

In reply to nevent1q…jrqa
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If you want to be able to customize your triangle graph paper with different sizes, colors, etc., without using a web site, then Robert McNees (npub188w…3emc) and I have you covered! We wrote a LaTeX package named gridpapers, available at https://github.com/mcnees/LaTeX-Graph-Paper or in any LaTeX distribution since ~2022.

Achievement unlocked: contributed code to AUCTeX! This will be ...

2024-10-15T15:03:23Z

Achievement unlocked: contributed code to AUCTeX! This will be included in a future version of emacs ^_^