[Chris2048]

You want an amazing, 21st century math tutorial?

I was astounded by this: https://acko.net/blog/how-to-fold-a-julia-fractal/

Amazing intro to complex numbers.

[Chris2048]

also: https://acko.net/files/gltalks/toolsforthought/

[iorrus]

Thanks that was incredible.

[Chris2048]

I actually emailed the author, asking if they had a tip jar since I was so impressed.

They replied "I'd be equally happy if you made a charitable donation this holiday to someone or some organisation that can use it more."

:-)