@teacherbowtie.bsky.social
A braggart, a rogue, a villain that fights by the book of arithmetic!
https://teacherbowtie.wordpress.com
https://teacherbowtie.wordpress.com
One of the most interesting and exciting Maths books I have read for some time. Very balanced on its view of Babbage and his contemporaries, and stuffed full of fascinating detail.
An excellent way to do some Maths (sort of) over half term.
An excellent way to do some Maths (sort of) over half term.
October 28, 2025 at 1:52 PM
One of the most interesting and exciting Maths books I have read for some time. Very balanced on its view of Babbage and his contemporaries, and stuffed full of fascinating detail.
An excellent way to do some Maths (sort of) over half term.
An excellent way to do some Maths (sort of) over half term.
Here is my attempt.
June 6, 2025 at 8:46 AM
Here is my attempt.
A class did one for me an unspecified number of years ago. Such a good gift.
May 7, 2025 at 9:28 PM
A class did one for me an unspecified number of years ago. Such a good gift.
@chalkdustmag.bsky.social had some in the latest issue!
March 20, 2025 at 10:33 AM
@chalkdustmag.bsky.social had some in the latest issue!
An excellent Howells-fest at #ChoralEvensong tonight.
February 9, 2025 at 6:24 PM
An excellent Howells-fest at #ChoralEvensong tonight.
This is very nice.
February 5, 2025 at 10:48 PM
This is very nice.
They could both be going in the opposite direction. The dot product always finds the angle between the vectors when they are going 'away' from each other.
December 15, 2024 at 10:50 AM
They could both be going in the opposite direction. The dot product always finds the angle between the vectors when they are going 'away' from each other.
I also saw some Standard Form in the wild!
November 30, 2024 at 4:22 PM
I also saw some Standard Form in the wild!
A fantastic day at the MEI Further Maths Conference today! Lots of fun thinking about difficult and interesting maths. Thank you @tombutton.bsky.social @natalievmei.bsky.social @mathemusician.bsky.social and everyone else!
November 30, 2024 at 4:19 PM
A fantastic day at the MEI Further Maths Conference today! Lots of fun thinking about difficult and interesting maths. Thank you @tombutton.bsky.social @natalievmei.bsky.social @mathemusician.bsky.social and everyone else!
For clarity, something like this:
November 13, 2024 at 9:29 PM
For clarity, something like this:
It doesn't quite answer your question about the not-expansion, but justifies why it might be a good choice.
There is some fun cancellation.
There is some fun cancellation.
November 4, 2024 at 7:29 PM
It doesn't quite answer your question about the not-expansion, but justifies why it might be a good choice.
There is some fun cancellation.
There is some fun cancellation.
I haven't taught it for a while, but Cosine Rule + 3D Pythagoras is how I have shown the equivalence in the past.
November 4, 2024 at 6:28 PM
I haven't taught it for a while, but Cosine Rule + 3D Pythagoras is how I have shown the equivalence in the past.
Of course!
September 15, 2024 at 7:41 PM
Of course!
There doesn't seem to be less work here than with the human-given hints.
What would be interesting is a comparison of a 'live tutor' in both cases, which feels like a more realistic situation to me.
What would be interesting is a comparison of a 'live tutor' in both cases, which feels like a more realistic situation to me.
August 9, 2024 at 6:15 AM
There doesn't seem to be less work here than with the human-given hints.
What would be interesting is a comparison of a 'live tutor' in both cases, which feels like a more realistic situation to me.
What would be interesting is a comparison of a 'live tutor' in both cases, which feels like a more realistic situation to me.
I saw a Mathoverflow post a few years ago and made this from it.
It works for (some) triples as well!
It works for (some) triples as well!
August 8, 2024 at 7:16 PM
I saw a Mathoverflow post a few years ago and made this from it.
It works for (some) triples as well!
It works for (some) triples as well!
I was looking through the Royal Mail website for some postage information, and found this crazy restriction on tube sizes:
July 24, 2024 at 10:53 AM
I was looking through the Royal Mail website for some postage information, and found this crazy restriction on tube sizes:
Is this you, @presentcorrect.bsky.social ?
March 17, 2024 at 7:40 PM
Is this you, @presentcorrect.bsky.social ?