mrcactu5 | 5 years ago | on: NumPy 1.20
mrcactu5's comments
mrcactu5 | 5 years ago | on: Quiver: A modern commutative diagram editor
has anyone seen "The Stacks Project" ? it's very technical but it's nice and collaborative https://stacks.math.columbia.edu/
mrcactu5 | 5 years ago | on: Introduction to Linear Algebra for Applied Machine Learning with Python
here's a Linear Algebra course from Columbia University with a bit of computer science emphasis.
https://tonydear.github.io/teaching/coms3251
mrcactu5 | 5 years ago | on: Open textbooks approved by the American Institute of Mathematics
there are lists of math and physics textbooks on github. maybe these are helpful https://github.com/carlosal1015/Books
mrcactu5 | 6 years ago | on: Why introductory chemistry is boring: a long-term historical perspective
what are the good freshmen level chemistry textbooks these days ?
mrcactu5 | 6 years ago | on: In New York, Making Ends Meet on a 5-Cent Recycling Deposit
Everybody drinks soda misses the garbage can, so these people are making the bottle and can recycling market more efficient.
mrcactu5 | 6 years ago | on: Visual6502 Remix
if all I want to to is build a Super Mario clone is the knowledge of the 6502 assembly language still necessary ?
mrcactu5 | 6 years ago | on: Mathematicians Cut Apart Shapes to Find Pieces of Equations
Here's a scissor's congruence app on github
mrcactu5 | 6 years ago | on: Solving Every Sudoku Puzzle (2006)
last year's US Sudoku Team Qualifier was held online at some point. Possibly in May or July.
mrcactu5 | 6 years ago | on: Levenshtein Distance
is Levenshtein distance a "metric" in the sense of "metric spaces"? For example, the TaxiCab metric.
https://en.wikipedia.org/wiki/Taxicab_geometry
https://en.wikipedia.org/wiki/Metric_(mathematics)
Also, this looks like could be related to the Hamming Code ? Error correcting codes.
mrcactu5 | 6 years ago | on: The Feynman Lectures on Physics: The Principle of Least Action (1963)
This shows the thrown ball (from Freshman physics) should follow a parabolic arc rather than a straight line.
mrcactu5 | 6 years ago | on: Wavelets (1994) [pdf]
how does this compare to Fast Fourier transform ?
https://en.wikipedia.org/wiki/Fast_Fourier_transform
Or the Discrete Cosine Transform ?
https://en.wikipedia.org/wiki/Discrete_cosine_transform
Or the Gabor Transform ?
mrcactu5 | 6 years ago | on: The Feynman Lectures on Physics: Algebra (1963)
He does a numerical computation of the complex powers of 10 (to five decimal places) and they still are on the unit circle. And this was done in 1963.
mrcactu5 | 6 years ago | on: “Culture fit” is a two way street (2018)
mrcactu5 | 6 years ago | on: Regex for Noobs – An Illustrated Guide
mrcactu5 | 6 years ago | on: Calculus for Beginners and Artists (2003)
Robert Ghrist has written an colorful and innovative calculus text.
https://www.math.upenn.edu/~ghrist/calculus.html
mrcactu5 | 6 years ago | on: Aceto: A programming language based on a 2D Hilbert curve grid
what motivates all these esolangs? these fractals tend to be coding exercises.
mrcactu5 | 6 years ago | on: Words That Are Their Own Opposites (2015)
these are called "Janus words" or self-antonyms. Such as "flammable" and "inflammable".
mrcactu5 | 6 years ago | on: CS Unplugged: Teaching material for CS using cards, string and crayons
does the United States have any such programs?
mrcactu5 | 6 years ago | on: Two-thirds of American employees regret their college degrees
i got into a nice college, and they even gave us financial aid. the job market was unforgiving.
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Shuffles arrays and lists. https://numpy.org/doc/stable/reference/random/generated/nump...