Viewing profile — mrcactu5

There's a random shuffle function. Instead of writing one out using an algorithms textbook. Lots of data types get randomly shuffled during coding. Shuffles arrays and lists. https…

has anyone seen "The Stacks Project" ? it's very technical but it's nice and collaborative https://stacks.math.columbia.edu/

here's a Linear Algebra course from Columbia University with a bit of computer science emphasis. https://tonydear.github.io/teaching/coms3251

there are lists of math and physics textbooks on github. maybe these are helpful https://github.com/carlosal1015/Books

what are the good freshmen level chemistry textbooks these days ?

Everybody drinks soda misses the garbage can, so these people are making the bottle and can recycling market more efficient.

if all I want to to is build a Super Mario clone is the knowledge of the 6502 assembly language still necessary ?

Here's a scissor's congruence app on github https://dmsm.github.io/scissors-congruence/

last year's US Sudoku Team Qualifier was held online at some point. Possibly in May or July. http://wpc.puzzles.com/ussq2019/

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/Me…

This shows the thrown ball (from Freshman physics) should follow a parabolic arc rather than a straight line. https://en.wikipedia.org/wiki/Principle_of_least_action

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_cos…

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.

http://mathworld.wolfram.com/PerpendicularBisector.html

https://regexper.com/

Robert Ghrist has written an colorful and innovative calculus text. https://www.math.upenn.edu/~ghrist/calculus.html https://www.math.upenn.edu/~ghrist/notes.html https://sites.mat…

what motivates all these esolangs? these fractals tend to be coding exercises. https://en.wikipedia.org/wiki/Hilbert_curve https://en.wikipedia.org/wiki/Dragon_curve

these are called "Janus words" or self-antonyms. Such as "flammable" and "inflammable". https://en.wikipedia.org/wiki/Auto-antonym

does the United States have any such programs?

i got into a nice college, and they even gave us financial aid. the job market was unforgiving.

i've always wondered how web and functional programming interact. there's, for example TypeScript and Elm. These are not designed for mathematical proofs. https://www.typescriptlan…

here are some pages that might be relevant https://ncatlab.org/nlab/show/tensor+network https://ncatlab.org/nlab/show/string+diagram

Here's some notes from Harvard on how to count Rubik's Cube positions with Group Theory The number is: 2^(12) 3^8 8!*12! http://www.math.harvard.edu/~jjchen/docs/Group%20Theory%20a…

a simple arithmetic computation shows that Europe has 750 million people, and the world has 8 billion people. That's 1/10 of the population. We neglect about 90% of people in... an…

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