Sorry I should not have given that one. The w function is something I had not encountered before.
Look on youtube there are dozens of other ones, some hard but fun if you like puzzling things.

That's odd, no one down voted that time.

I wanted electrical engineering but it had a speech course so went for chemistry course but had senior seminar which worried me for 4 years. I had a panic attack before my presentation of use of LASERs in chemistry. Social anxiety isn't easy to live with though nice not dealing with others and being alone during COVID19 lock down.

Nice...ΔΨΦΣΠ∮∇∯ω√

Thank you! I bookmarked this one!

OK, I finally watched the whole video and had to back it up and pause in a few spots, but got lost towards the end anyway. I've never been introduced to the Lambert W function (at least I don't recall it). It's a proof I have a lot of work to do if I want to go "there", LOL. If a numerical solution was required, I figure with a scientific calculator I could have brute forced a very close answer in far less time than it took the professor to explain it.

rather than CsubA notation I have used C_A which uses shift minus symbol.

Elsewhere I gave:
https://math.typeit.org/

for most other math and language symbols.

Here is a nice link for most all symbols:

https://math.typeit.org/

Information they want you to miss. Perfect! ThanQ brother.

I started to watch the video (nice), but breakfast is calling so I'll finish it later. Don't know why someone would down vote your post, but I bumped it back up.

I had to drop college for family/financial reasons and never went back. I was running a 4.0 in Digital Electronics and the institution gave me a "Field of Study" diploma with distinction, but I never completed the degree. I, too, have accumulated a good sized library that will likely be recycled or land filled upon my leaving the planet.

Well racially spoken. Maybe it is the that eons ago my ancestors as well as yours came out of Africa.

Can you draw any of those mathematically exact or measure exactly so you can write down the actual value of pi? It is an abstraction about abstract circles and nothing more.

I will be 85 soon and have forgotten most of the math to the masters level. I have had heavy duty social anxiety all my life so couldn't practice math or my chemistry degree stuff. Went into lawn care business with 4 months off in winter to use math as a hobby. I like this:

https://www.youtube.com/watch?v=2pTfC...

Never did that stuff in algebra class in 1961.

As for books, no one wants my library of 1500 books with several hundred math and lots of physics and computer books. Young people are not interested due to getting everything online.

the symbol standing for the specific value 3.14159... is easier than measuring a circle. It is not possible to physically use pi exactly being an abstract mental irrational object. All math is abstraction, a small part of it dealing with the real world.

You are correct placing definition of pi instead of the symbol pi. Must be a geometer. That way would make math a bit harder. The symbol

My current math skills are corroded with age and disuse so I never would have caught it, but I appreciate you getting back to the Gulch.

Interestingly, a few days ago I acquired a used two-volume set of Math books totaling over 2400 pages long and covers from simple math all the way to calculus. My hope was to brush through it over the next year or so and sharpen my knowledge a bit just for the fun of it. The highest I ever went in formal math education was to ace a precalc college course around 1982 (electronics courses got me into Maxwell and a bit more, but I can't recall most of it now). I'm now 72 and am still interested enough to give it a go. So, here in the Gulch, Snezzy and you are giving me the spark to get on with it.

Thank you, Snezzy! The links are fascinating and helpful. This is one reason I love the Gulch! The knowledge on so many topics keeps on flowing from so many folks like yourself!

Keyboard table showing the various codes for obtaining pi, but I had to check and found 003C0 (hex) is 960 (dec).

I'll have to bake the last one the next time I make pi, LOL.

Could use some work.

e^30 = 1.0686510^13

e^π = 2.31405810^1

My post was wrong anyway. It should have been:

e^(π i) = cos(π) + i sin(π ) = -1 + 0 =-1

I went to some website, probably Excitlopeedonya or something that had a π, and copied it. That'll be CTRL-C. Then I pasted it (CTRL-V) where I wanted it. π π π π π π π π π . Easy as π

There are various other ways to do it, some worse than others. For those who like emacs, there is this approach: https://stackoverflow.com/questions/1...

Here's some more:
https://symbolhippo.com/pi-symbol-text/

For more about oiling, no that should be Euling, there is this:
https://www.math.toronto.edu/mathnet/...

Finally, there is this illustration:
https://fsymbols.com/images/pi-pie.jpg