I've got my A-to-Z for the year under way, with a bit of a career-biographical sketch if Michael Atiyah:
My second A-to-Z topic for the year was the Butterfly Effect. Of course I slipped some comic strips into it.
My third A-to-Z topic was Complex Numbers. I've written about them before, so tried to think a bit about a different angle: why do we trust them?
The fourth of my A-to-Z topics was Delta. It's a big idea so I tried to trim it to two specific but not quite identical uses of the concept.
For my fifth A-to-Z topic, I got the suggestion of Exponential. I used the chance to work out a reason behind something we've gotten used to: why is the exponential of an imaginary number on the unit circle?
The sixth of my A-to-Z topics was Fibonacci. One of my readers hoped to learn a bit about Leonardo of Pisa's biography. This brought me to some amazing discoveries about Fibonacci's biography, and I share it here ...
I had another biographical note f or the seventh of my A to Z this year: J Willard Gibbs.
For the eighth of this year's A-to-Z essays I wrote about Hilbert's Problems, and about a question adjacent to David Hilbert's famous list.
I'm also interested in topic suggestions for the M, N, and O letters, for a couple weeks on.
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