tobmlt

Joined 9 years ago

Karma
682
Submissions
313
Member since
Jul 12
I wrote an automated geometry design/generation tool for my PhD. A bit of nonlinear optimization and constraint programming with a natural (math) interface for writing constraints. Some other goodies.

I really like discrete differential geometry and what aspects of differential topology I’ve been able to get hold of so far. I enjoy writing computational code (cfd, time unsteady motions, design generation/optimization, mostly) and am enamored with the idea of symmetry preserving integrators, and the like.

I currently work on software for computational analysis and design.

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Recent submissions

Comment · 8 months ago
fuck me. I have had ridiculous insomnia since 2020. I have had tinnitus on and off since 2015/16 Incidentally this is also when my insomnia first showed up.
Comment · 9 months ago
On both my nokia and my blackberry it was far far better than on my iphone. That wasn't quite 199X but pretty close.

I wish the iphone had word prediction and autocorrect that was from the previous centruy

Comment · 1 year ago
This reminds me of something I remember from college but cannot ever seem to find: "The Jevon's diagram" by which I mean a two country system, with country containing two groups: highly educated and not very educated. The two countries have very different proportions of each group, and the analysis is around free immigration vs no immigration, and shows the harm done to the larger number of less uneducated in one of the countries. Anyway, I'm not going to do a good job of describing this thing, from 20 years ago in class, here, but if anybody knows offhand what I mean and can point me at an article or source on this, I'd be very appreciative! It's bugging me from way back! (where are my notes! Silly tobmlt, not taking notes in latex back then)
Comment · 4 years ago
Hey thanks. Reddit could be your friend here. Well, honestly, youtube as well.

Here's a good, to the point summary of a lot of things:

https://www.youtube.com/watch?v=vgH_9Iy7_mQ (lot's of good advice from this guy I think, I the fact that he's selling you on his channel doesn't put you off)

0.) dress just a little bit nicer than average. Do this by simply dressing for the occasion and most likely it will just happen.

https://www.reddit.com/r/coolguides/comments/bfxiqb/how_to_d...

1.) Wear clothes that fit

https://www.reddit.com/r/malefashionadvice/comments/ehrtv/sh... https://www.reddit.com/r/malefashionadvice/comments/1hr3nk/h...

2.) Wear a watch:

https://www.reddit.com/r/Watches/comments/2mkg05/rwatches_bu... https://www.reddit.com/r/Watches/comments/1oawc3/meta_watche...

3.) understand when to wear what shoe

https://www.reddit.com/r/malefashionadvice/comments/p7usf/sh...

4.) Going out? Got a date? Wear a blazer:

https://suitsupply.com/en-us/ https://www.youtube.com/watch?v=XNe1dkaTfg0 (youtube, content starts at 2:06 or so. this guy wears more snickers than I'd be comfortable with, but it's fine for him, and yeah, anyway, some good ideas there)

Also critical, no how a suit should fit, tie your ties, etc. Reddit it all over this stuff so google reddit with your particular question and you should be on your way.

I hope that helps!

Comment · 4 years ago
Great idea. Here is something that could be similar but more niche (sorry if too niche): join a meetup group for that does indoor rock climbing. If, say, meetup is a big thing where you are. Otherwise, check for, e.g. facebook groups that partner up climbers -- meet and learn! (likely need to take a class to learn the very basics first, assuming you know absolutely nobody and there is no meetup for it.)

More laid back: join a weekly bikes-with-lights social biking group. Weekly trivia, meetups at bars for tech people, new people to the area, karaoke, etc. Play to your strengths/likes. Run and hit the gym to boost social confidence (now I am back at crossfit ;). Learn how to dress up just slightly more than standard for any occasion (non exercise that is) if you don't already know.

It's easier to make friends outside of work if you build some structure or drive into your life beyond work. Become interesting by having interests. Whatever you choose to do, keep doing it and eventually you will meet like minded souls.

I wonder where OP is. Location might have a say in what's popular and help find a matching interest.

Comment · 4 years ago
I've always imagined Feynman making a QED, QED joke sometime in the late 1940's for this very reason. Like he could end his Shelter Island Conference talk with the joke and then look up from the blackboard... to a bunch of confused and deeply furrowed brows, lol.
Comment · 4 years ago
Comment · 5 years ago
Latex specific ide \frac and auto fill. You can for sure get speedy with practice!

Those beautiful graphs now… I ended up using secondary programs to gen images (pdf or whatever) of graphs and such for latex to bring in the usual way. Not as good!

Comment · 5 years ago
Great stuff! I am in awe of your beautifully done graphs.

For speed with, e.g. matrices like you say, but also more specialized course specific notation, could you build a set of quick functions for the topic of the day to aid note taking?

If set up your environment just so, you can repurpose really simple commands like the slash in “\this” to do some common but annoying thing like bold upright lettering or underbars or something. (I actually need to go look at latex to be sure what all you could make maximally parsimonious… it’s been a while and I mostly copy and paste my old commands around. Anyway, you probably already do this kind of thing.

Comment · 5 years ago
Experiences vary. I was just at the point of qualifying exams when a full time job op came up in a tightly related field. They (profs and managers all) understood, my new co-workers mostly being phds themselves, and I hired on at 32 hrs a week for full time - health insurance etc, and dropped my dicey gov research funding. I loved every second of working mon-thurs, phd by,… every other spare second. But I could live on chewing gum, beers, and ideas at that age, I guess. I also took about 6 years all up. God it was fun when it was fun.
Comment · 5 years ago
This should be a proxy measure for inflation. (If only it was quantifiable so easily…)

Instead of prices going up in this case, quality goes down.

Comment · 5 years ago
Yes thanks. My bad for not putting up a link.
Comment · 5 years ago
Give me a neural lace with which I can stop a knife missile, or contact which stops the figurative knife missile forever, and so am I.
Comment · 5 years ago
This thread makes me wonder how many knife-missiles the USA has in stock.

(I am using the opportunity to reference the fact that the USA indeed has a “knife missile” and it is similar in principle if not in capability to the knife missile if the “Culture” series by Ian M. Banks.)

Comment · 5 years ago
No clue. Octave is here for us… so at least we can run their code and ask any pertinent questions to expedite the port. ;)

(Yes I know it’s simulink for many, but I’ve met some pure computational folk who swear by matlab as their prototyping tool and python is a bug ridden rat nest of footguns to them.)

C’est la vie

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