sfpotter

45 ms·

631.
by sfpotter 4y ago
Typo... thanks.
632.
by sfpotter 4y ago
> Unitary evolution generated by the Schrödinger equation is a linear map on _probability amplitudes_, just like how classical (probabilistic) computing performs linear operations on _probability distributions_. The commonly used quantum
633.
by sfpotter 4y ago
The amount of research funding is finite. Why spend it on something highly speculative when there are many other things it could be spent on which are not speculative?
634.
by sfpotter 4y ago
Virgin Beauty is my favorite Ornette Coleman & Prime Time album. There is some really crazy, goofy stuff going on, and it's always fun to hear Jerry Garcia noodling around aimlessly in the background.
635.
by sfpotter 4y ago
Stephen Wolfram’s Mentaculus
636.
by sfpotter 4y ago
That’s great! Good luck with your conference. I hope you can appreciate that there’s room between “technically correct” and “hurling expletives” for some someone to simply dislike an article. I regret my response struck a nerve—it certainly
637.
by sfpotter 4y ago
Did I attack video games?
638.
by sfpotter 4y ago
If you slow down and read my original post again, you'll see that I said that I was "among the most receptive to what he's trying to say". I clicked through to this post because it's a topic I wanted to read about.
639.
by sfpotter 4y ago
"Through my years in a university computer science program, this way of thinking was peddled repeatedly. Learning how to manage memory in C was an endeavor to “learn how things work”, strictly for academic purposes. The idea that anyon
640.
by sfpotter 4y ago
If they’re preaching, it’s quite a long and boring sermon, IMO ;-) Battle stories should be exciting
641.
by sfpotter 4y ago
This article is about 10 times longer than it needs to be. Also no need for the dripping condescension. I’m even among the most receptive to what he’s trying to say, but got exhausted after about 20% of the article and had to give up.
642.
by sfpotter 4y ago
The most entertaining part of TNG and DS9 to me are the lengths they go to dance around the obvious fact that Risa is The Sex Planet. Everyone seemed to have a great time with the gag.
643.
by sfpotter 4y ago
Say you consider a column vector to be an actual physical vector in space. The geometric way to think of this entity is as a direction (n-1 degrees of freedom) and a magnitude (1 DOF). Because of the definition of matrix multiplication, if
644.
by sfpotter 4y ago
This is a little confused. Matrix multiplication is defined as follows: if A is an m x n matrix and B is an n x p matrix, then the (i, j)th entry of C = AB is: \sum_{k=1}^p A_{ik} B_{kj} This definition works whether you think of a column v
645.
by sfpotter 4y ago
If you define u to be a column vector, and u' to be its (conjugate) transpose, and define matrix multiplication as usual, then u'v is a dot product and uv' is an outer product. What you mentioned about the standard basis vect
646.
by sfpotter 4y ago
Here's BLIS's object API: https://github.com/flame/blis/blob/master/docs/BLISObjectAPI... Searching "object" in BLIS's README ( https://github.com/flame/
647.
by sfpotter 4y ago
MATLAB uses BLAS and LAPACK under the hood. You can write reasonably fast code in MATLAB if most of your time is spent calling out to faster low level implementations. There are also many different implementations of BLAS, with varying perf
648.
by sfpotter 4y ago
There’s no real reason to think of column vectors as points in space rather than the other way around when you’re doing linear algebra. It’s just a convention. If you wanted, you could think of a row vector as a point in space and transpose
649.
by sfpotter 4y ago
PIMP.
650.
by sfpotter 4y ago
Your hourly rate is not the only thing that matters.
651.
by sfpotter 4y ago
I don’t get it. Why would you use this instead of Emacs? Still such poor use of screen real estate. In Emacs I’m in “zen mode” all the time…
652.
by sfpotter 4y ago
If you're referring to my last sentence, "Arguing otherwise is being disingenuous", two things: 1) People are disingenuous all the time, intentionally and otherwise. Doesn't necessarily mean that they are "bad"
653.
by sfpotter 4y ago
This is the correct interpretation. Apologies for any confusion.
654.
by sfpotter 4y ago
Yup, and I bet a lot of those repos are on GitHub. Which is owned by Microsoft. And which were then fed into Copilot. It’s almost like Microsoft is capable of not only trawling through huge amounts of code, but accurately identifying Tim Da
655.
by sfpotter 4y ago
Just for some context, Tim Davis is both the author of SuiteSparse (library in question), and one of the main researchers behind the algorithms used in SuiteSparse. It’s common for academics working in this field to release their software o
656.
by sfpotter 4y ago
Second this comment... My wife and I recently had our first, and so far this is the perspective I've been trying to adopt, which has helped. It's not like you lose your ambitions completely, but there are new constraints. You no l
657.
by sfpotter 4y ago
It does not show an unwarranted sense of self-importance on the part of Tim Davis. Whether or not his style his widely known, his code is VERY widely used. Just look up SuiteSparse and try to find all of the downstream uses of it. It is one
658.
by sfpotter 4y ago
Saying things are cringe is the cringest thing of all.
659.
by sfpotter 4y ago
Why is "idiomatic C" equivalent to "long functions and few internal interfaces"? The whole point of having a small surface-area for your ABI with plenty of detail hiding is that you are free to do what you like beneath i
660.
by sfpotter 4y ago
I'm sorry, I don't completely understand what your point. You seem to be alluding to "what C is actually good for", but it's not clear to me what that's supposed to be. I understand that you think C should not

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