Angshuman Roy

@angshuman1989

Research fellow at Indian Statistical Institute, Kolkata

West Bengal, India
Vrijeme pridruživanja: listopad 2014.

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  1. proslijedio/la je Tweet
    2. velj
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  2. proslijedio/la je Tweet
    27. sij

    Information is quantified in terms of surprise. If everything in a message is expected, then it contains no information, no matter how long it is.

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  3. proslijedio/la je Tweet
    26. sij

    This is a recently discovered illusion, and it’s really quite striking. The strange effect is called the ‘curvature blindness’ illusion

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    11. sij

    Entire Alphabet Found on the Wings of Butterflies. By Norwegian photographer Kjell Bloch Sandved ()

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  5. 31. pro 2019.

    Yes, we don't support CAA.

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    27. pro 2019.

    “Programming is the art of doing one thing at a time” - Michael Feathers

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    26. pro 2019.

    Proof that for Fibonacci numbers F²₁+F²₂+...+F²ᵢ=FᵢFᵢ₊₁ ⭕️🔵⚫️⚫️⚫️🔴🔴🔴🔴🔴🔴🔴🔴 ⚪️⚪️⚫️⚫️⚫️🔴🔴🔴🔴🔴🔴🔴🔴 ⚪️⚪️⚫️⚫️⚫️🔴🔴🔴🔴🔴🔴🔴🔴 🌕🌕🌕🌕🌕🔴🔴🔴🔴🔴🔴🔴🔴 🌕🌕🌕🌕🌕🔴🔴🔴🔴🔴🔴🔴🔴 🌕🌕🌕🌕🌕🔴🔴🔴🔴🔴🔴🔴🔴 🌕🌕🌕🌕🌕🔴🔴🔴🔴🔴🔴🔴🔴 🌕🌕🌕🌕🌕🔴🔴🔴🔴🔴🔴🔴🔴

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  8. proslijedio/la je Tweet
    30. stu 2019.

    The edge of space and low Earth orbit to scale with a map. Stack of pennies on the right represents the Kármán line where space begins. It is 100 km high (62 mi). Left stack represents low Earth orbit, approximately 300 km (186 mi) of altitude [source: ]

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  9. proslijedio/la je Tweet
    28. stu 2019.

    “Snow rollers” are the cold weather equivalent of tumbleweeds. (Photo: Wes Garrison)

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  10. proslijedio/la je Tweet
    27. stu 2019.

    The Murmurations of Starlings (Photo: Menahem Kahana, Daniel Biber, David Buimovitch, Oded Balilty)

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  11. proslijedio/la je Tweet
    19. stu 2019.

    Inflection points on curves can be thought of as the positions where the steering wheel would be in the "straight on" position if you were driving along it

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  12. proslijedio/la je Tweet
    20. stu 2019.

    Start with 82 and go backwards to 1 8281807978777675747372717069686 7666564636261605958575655545352 5150494847464544434241403938373 6353433323130292827262524232221 2019181716151413121110987654321 ...this number is prime!

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  13. proslijedio/la je Tweet
    13. stu 2019.
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  14. proslijedio/la je Tweet
    30. lis 2019.

    RSA algorithm in a poem, by Daniel G. Treat. Take two large prime numbers, q and p. Find the product n, and the totient ϕ . If e and ϕ have GCD one and d is e's inverse, then you're done! For sending m raised to the e reduced mod n gives secre-c.

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    9. lis 2019.

    'It is the snobbishness of the young to suppose that a theorem is trivial because the proof is trivial.' -- Henry Whitehead

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    The embodiment of a "pathological" function, the Weierstrass functions are continuous 𝑒𝑣𝑒𝑟𝑦𝑤𝘩𝑒𝑟𝑒 but differentiable 𝑛𝑜𝑤𝘩𝑒𝑟𝑒

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  17. proslijedio/la je Tweet
    5. lis 2019.

    This was an inspired leap: “How can we generalize beyond metric spaces the notion of a set being being bounded and having all its limit points? I know, let’s require every open cover to have a finite subcover.”

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    The Burning Ship Fractal is closely related to the Mandelbrot Set Mandelbrot: zᵢ₊₁ = zᵢ² + c Burning Ship: zᵢ₊₁ = ( |ℝ𝕖(zᵢ)|+ 𝑖 |𝕀𝕞(zᵢ)| )² + c

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    Hundreds of giant honeybees performing their collective threat display. Known as "shimmering," the display is similar to a wave in a sports stadium, and is designed to scare off wasps and other predators.

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