David Cox
@dlcmaths.bsky.social
Maths teacher in Singapore - maths, board games, crosswords, banjo
A rare Anti-Betteridge's Law example...
June 15, 2025 at 12:06 AM
A rare Anti-Betteridge's Law example...
Also has a nice geometric interpretation if you look at a point moving around a circle!
May 20, 2025 at 12:39 PM
Also has a nice geometric interpretation if you look at a point moving around a circle!
Yes - I was picturing a step function which then gives too much flexibility to categorise them all!
May 15, 2025 at 9:41 AM
Yes - I was picturing a step function which then gives too much flexibility to categorise them all!
*continuous functions?
This is a lovely question!
This is a lovely question!
May 14, 2025 at 10:00 PM
*continuous functions?
This is a lovely question!
This is a lovely question!
Don't overlook @wolframresearch.bsky.social, for example: www.wolframalpha.com/examples/soc...
Wolfram|Alpha Examples: Demographics & Social Statistics
Wolfram|Alpha's data on demographics and social statistics covers topics ranging from health care, business, crime, education, income and employment to language, marriage, geographic mobility, voting ...
www.wolframalpha.com
January 28, 2025 at 11:15 PM
Don't overlook @wolframresearch.bsky.social, for example: www.wolframalpha.com/examples/soc...
I hadn't seen these before - thanks for the recommendation
November 23, 2024 at 6:49 AM
I hadn't seen these before - thanks for the recommendation
Great! You can check out the book here for free: www2.math.upenn.edu/~wilf/Downld...
November 23, 2024 at 6:48 AM
Great! You can check out the book here for free: www2.math.upenn.edu/~wilf/Downld...
This is lovely from @phillipsexeter.bsky.social : www.exeter.edu/wp-content/u...
November 21, 2024 at 11:56 AM
This is lovely from @phillipsexeter.bsky.social : www.exeter.edu/wp-content/u...
Generatingfunctionology
Linear Algebra Done Right
How does one cut a triangle?
Graph theory
Pinter's Abstract Algebra
Linear Algebra Done Right
How does one cut a triangle?
Graph theory
Pinter's Abstract Algebra
November 21, 2024 at 11:43 AM
Generatingfunctionology
Linear Algebra Done Right
How does one cut a triangle?
Graph theory
Pinter's Abstract Algebra
Linear Algebra Done Right
How does one cut a triangle?
Graph theory
Pinter's Abstract Algebra
I always liked the sum squared mark as an elegant way to reward more complete solutions
August 27, 2024 at 10:03 AM
I always liked the sum squared mark as an elegant way to reward more complete solutions
It feels right - the proof is quite nice, too
August 13, 2024 at 8:02 AM
It feels right - the proof is quite nice, too
You forgot big eyebrows
January 3, 2024 at 12:35 AM
You forgot big eyebrows