this post was submitted on 01 Jul 2025
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This very nice Romanian lady that taught me complex plane calculus made sure to emphasize that e^j*theta was just a notation.
Then proceeded to just use it as if it was actually eulers number to the j arg. And I still don’t understand why and under what cases I can’t just assume it’s the actual thing.
Let's face it: Calculus notation is a mess. We have three different ways to notate a derivative, and they all suck.
Calculus was the only class I failed in college. It was one of those massive 200 student classes. The teacher had a thick accent and hand writing that was difficult to read. Also, I remember her using phrases like "iff" that at the time I thought was her misspelling something only to later realize it was short hand for "if and only if", so I can't imagine how many other things just blew over my head.
I retook it in a much smaller class and had a much better time.