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Thought lockdown would have given me more time to study but if anything it's the opposite - especially before the kids went back to school/nursery.
Trying to create morphology charts for a tow mount bicycle carrier atm - shoot me.
I don't remember covering it at A level, but then that was sometime in the late eighteenth century and things were different because of the war etc. Somewhere along the line I learned about i, and j for the non-mathematicians who had embraced the newly discovered electricity, so I’m guessing that was whilst reading Physics at University. I did use it a little bit when I was in R&D but probably 90% of what I’d studied was of no benefit whilst the relevant bits barely scratched the surface of what I needed to know.
After a few years in R&D I hung up my lab coat (which was tie-dyed) and open toed sandals and moved into the Commercial side of the business. Here, as in politics, numbers were very important but maths wasn’t. You had to have the right numbers, but how you achieved them was far less important.
I'm constantly flipping between "I wish I could remember more of what I studied" and "FFS, I wish I'd taken something more people-centric, because they just confuse me".
Complex logarithms are, well, complex.
I won't lie, it was basically five months of our heads exploding and one month of him explaining that if we used those things in the exam, we'd probably lose marks.
Just about the only thing I thought was really cool from all of that was synthetic division, for dividing polynomials. It was that "Holy fuck!" moment, where you realise that tons of stuff you've been taught over the years were just special cases of this one simple concept.
Oops.
I'm doing 3D development at the moment. Building a set of tools to create 3D geometry straight from code. It's been one of the most interesting projects I've done.
Sincerely though, I do wish I'd paid more attention. Been working my way through a DSP book, and having to learn the magic symbols to tell my brain how to think properly.... it's quite difficult.
They're in the nerd section of my book collection. But purchased well after A levels and Uni, apart from the little A level books at the front.
https://i.imgur.com/4ACsCxt.jpg
Having said that, I am fascinated by the highest levels of maths, my favourite book is 'Fermat's last theorem', and it talks about various maths concepts in an easy to follow way (in no way actually explaining them!). It's a world I wish I could indulge in.
I use a lot of logic in my job (project finance for infrastructure) but nothing like uni level maths, which I have literally zero interest in these days. Thank goodness.