Readit Newsagarttha commented on The Emperor of Ice-Cream cog.cnrs.fr/emperor.html... · Posted by u/agarttha
Reload a couple of times.
agarttha commented on Learning Feynman's Trick for Integrals zackyzz.github.io/feynman... · Posted by u/Zen1th
To people who find this stuff useful in practise today (and not merely fascinating or useful 50 years ago): what is your line of work?
I have needed to know the values of a few integrals in my job, but I have always ended up with a close enough answer using computational methods. What am I missing by not solving analytically?
In quantum mechanics, what you can measure experimentally (observables) are given by integrals. You can do the integrals computationally, but then you only have an empirical understanding of how the observables behave when you change some parameter of your experiment.
In our experiments, we need to know how the frequency of an electromagnetic resonator will change when we couple it to a quantum system. We calculate these frequency shifts with integrals. Being able to calculate these integrals analytically for some limiting cases helps us understand the dependence on the parameters. And usually you can patch the limiting cases together and not even have to compute the integrals numerically.
i know the title can be a bit misleading but Myna is primarily ASCII.
languages which insist on using full Unicode like APL and Agda have bigger problems (availability of uniform glyphs and inconsistency with monospace design) on their plates. which imo is one reason why full Unicode editing hasn't really caught up.
Myna doesn't use any ligatures though. it would run on almost all terminals and editors.
What about a J example? https://code.jsoftware.com/wiki/NuVoc
Replace the middle manager
Here's python code to simulate one of the still-active doomsday predictions (The Limits to Growth)