cerca7rova (@eliloz_) profile picture
Joined March 2019
Photo by cerca7rova (@eliloz_)Photo by cerca7rova (@eliloz_)Photo by cerca7rova (@eliloz_)
If the entire global population lived in Texas, the population density would be less than half of Manhattan’s current residential density.
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Can't wait to get a look at this!
It was an intellectual joyride working with Terry Tao on his first popular math book SIX MATH ESSENTIALS. In stores Oct 27, now available for preorder: quantabooks.org
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cerca7rova retweeted
If you claim to support human rights yet can’t bring yourself to show solidarity with those fighting for their liberty in Iran, you’ve revealed yourself. You don’t give a damn about people being oppressed and brutalised so long as it’s being done by the enemies of your enemies.
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If you’re trying to learn tensors and don’t know where to start, I recommend these notes from ETH Zürich: “Multilinear Algebra and Its Applications” PDF: metaphor.ethz.ch/x/2021/fs/4…
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Computer scientist Edsger Dijkstra on the frustration of debugging a program you wrote yourself
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Oh, to be a sticky note on the “what didn’t go well” column of the Paul/Tyson Netflix sprint retro
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Just finished “Asynchronous Programming in Rust” by @cf_samson. Wow. This book cleared up so many questions I had around green threads and async/await. I’d recommend this book for general insights into async programming even if Rust isn’t your language of choice.
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Today we honor the memory of all those we lost on September 11, 2001. May we never forget their stories – and the bravery of our first responders and troops who sacrificed so much.
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Traditional vector calculus courses tend to stress the importance of div, grad, curl and all that. But the subject is way more intuitive and unified when viewed through the lens of differential forms. These notes are a great resource: sites.ualberta.ca/~vbouchar/…
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I'm learning @rustlang and I gotta say, the compiler error messages are super helpful.
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One cool application of equivalence relations is counting the number of combinations when you have repeated elements. Take the word "cool" for example. How many ways can you rearrange the letters? It's not simply 4! = 24 since the two o's can be swapped.
Fun fact: every equivalence relation on a set "splits" that set into disjoint equivalence classes whose union is the original set. How cool is that!
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We can analyze this using equivalence classes by capitalizing one of the letters to distinguish them -- coOl. The equivalence class for [Oclo] = {Oclo, oclO} since those are equal when we remove the capitalization. In fact, all of the classes have the same size of 2.
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Therefore, the total number of equivalence classes turns out to be 4!/2 = 12. So there are 12 unique ways to rearrange the letters. Neat.
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I’ve only been through 1/3 of these lectures but they are exceptional. Check them out if you’re interested in learning the theoretical foundations of differential geometry. youtube.com/playlist?list=PL…
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