Blog.CarlRobitaille.org

Indiscriminate laziness

P(x,y) = x buffalos y

Posted on 2022/03/11 by Carl Robitaille

P(x,y) = x buffalos y
B = the set of buffalo in Buffalo

The buffalo⁸ statement can be phrased as:
∀a∈B, ∃b∈B:P(b,a)→∃c∈B:P(a,c)

🦬 🦬 🦬 🦬 🦬 🦬 🦬 🦬
— Bill Shillito – now at @solidangles.bsky.social (@solidangles) March 2, 2022

If three points lie on the graph of y=1/x, so will their orthocenter

Posted on 2022/03/11 by Carl Robitaille

If three points lie on the graph of y=1/x, so will their orthocenter. pic.twitter.com/jdg7qUEfaf
— Albert Chern (@theAlbertChern) March 2, 2022

The derivative of a Bézier curve is another Bézier curve.

Posted on 2022/03/11 by Carl Robitaille

The derivative of a Bézier curve is another Bézier curve.
— Analysis Fact (@AnalysisFact) March 1, 2022

A julia set fractal can be created with repeated twistings and translations of a starting image

Posted on 2022/03/11 by Carl Robitaille

a julia set fractal can be created with repeated twistings and translations of a starting image. The twistings double the detail in the picture, and correspond to complex square-roots pic.twitter.com/M9XhWElehp
— Matt Henderson (@matthen2) March 1, 2022

I discovered this way of growing the Mandelbrot set. The repeated operation helps me understand where the Mandelbrot set gets its shape and detail pic.twitter.com/f3FiYGgHyj
— Matt Henderson (@matthen2) March 1, 2022

Enroulement

Posted on 2022/03/11 by Carl Robitaille

~~~~~ pic.twitter.com/JDAhhXU4PM
— たいすーらせん (@Yugemaku) February 26, 2022

The Tetrahedral Boat

Posted on 2022/03/10 by Carl Robitaille

10 Optical Illusion Animated Gifs

Posted on 2022/03/10 by Carl Robitaille

10 Optical Illusion Animated Gifs

Mathematics.

A strange piece of reality. https://t.co/67MZjzfaZ0 pic.twitter.com/w9hF5UHTDv
— Cliff Pickover (@pickover) February 24, 2022

Finite abelian groups are either cyclic or the direct product of cyclic groups

Posted on 2022/03/10 by Carl Robitaille

Finite abelian groups are either cyclic or the direct product of cyclic groups.
— Algebra Etc. (@AlgebraFact) February 24, 2022

Donald Knuth on the similarities between mathematics and computer science

Posted on 2022/02/24 by Carl Robitaille

Donald Knuth on the similarities between mathematics and computer science pic.twitter.com/PQmmGMPfA9
— Fermat's Library (@fermatslibrary) February 24, 2022

Pythagorean triples for when you need an arbitrary rotation matrix

Posted on 2022/02/24 by Carl Robitaille

It is convenient to know a few small Pythagorean triples for when you need an arbitrary rotation matrix, so you can fill it up without resorting to sines and cosines. pic.twitter.com/DJyXVMSPWj
— inigo quilez (@iquilezles) February 24, 2022