Rupadarshi Ray
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rupadarshiray.bsky.social
Rupadarshi Ray
@rupadarshiray.bsky.social
Mathematics. obsidian.md.
Still interested?
October 27, 2025 at 9:37 AM
LeeSM, LeeRM. That's all.
October 27, 2025 at 9:30 AM
WHAT
October 27, 2025 at 8:09 AM
same!
October 25, 2025 at 6:46 AM
Well, there are actually 4 kinds of [goes on about it forever...]
October 25, 2025 at 6:36 AM
Reposted by Rupadarshi Ray
i just finished switching from onenote to obsidian before i saw this post. it was really easy to import everything. i got sick of microsoft having access to all my work. You can also import google keep!

obsidian.md
Obsidian - Sharpen your thinking
The free and flexible app for your private thoughts.
obsidian.md
August 22, 2025 at 6:52 PM
I disabled the view "title" (filename) option and write the "title" as a H1 header.

The new file template I use automatically adds the "title" in the three places: "title" property, "aliases" property and the H1 header.
August 26, 2025 at 8:33 AM
Reposted by Rupadarshi Ray
Day 1: Hopfield Network (doesn't look very elegant but that's fine ig)
June 23, 2025 at 6:13 PM
Try the "web" tab for searches www.youtube.com/watch?v=qGlN...
The Secret Google URL For The "Good" Search Version
YouTube video by ThioJoe
www.youtube.com
May 29, 2025 at 8:36 PM
The boundary of the preimage must be z: |p(z)|=1, so pp-bar =1, which (LHS) is a real two-variable polynomial? So we can check if it's an equation for an ellipse or not...
May 29, 2025 at 8:24 PM
Green is after integration by parts: oscillates less, so we get a better bound for all of green => better bound for its integer values!

This would be so crazy a century ago! Old books literally had a "list of figures" in them...
May 29, 2025 at 8:22 PM
Exactly! I am using it for almost everything I can think of now. Example: while trying to give bounds for Fourier coefficients of a 1-periodic function on R, we realise integration by parts gives non-trivial bounds. Here, red is the original naive integral, we only care about integer values...
May 29, 2025 at 8:22 PM
Question: how can it get better over time if we don't give it enough data to copy from? Its good at coding because it is copying from all of github? We should train llms on graduate math books then? Elsavier, Springer vs OpenAI would be fun then (ofc won't ever happen)
May 29, 2025 at 8:16 PM
It's fruitless to ask it to do any math above first-year undergrad level. It once hallucinated two invariant functions for a flow on the plane (which is "kinda" impossible if the flow is non-trivial, functions are non-cons etc)

However, it does randomly inspire "physics-type" arguments quickly...
May 29, 2025 at 8:16 PM
Purple mangoes?!
May 29, 2025 at 8:07 PM
Unfortunate. I had the same experince in commutative algebra without any knowledge of alg geom or NT
May 29, 2025 at 8:02 PM