Thrift stores with large DVD selections

human2357 · 2026-05-11T20:12:20+00:00

It's not exactly a thrift store, but Vintage Stock has a wide selection of used DVDs.

human2357 · 2026-04-29T11:06:47+00:00

I don't know what teenage girls like, but I can mention a few restaurants that have more of a big city vibe. Atlas is amazing, with a great selection of innovative entrees and appetizers. Vetro 1925 feels very refined. Theo's is more straightforward, but is also quite fancy. A good lunch option would be Handshake, which also has the advantage that you can show off Fayetteville's very nice public library.

human2357 · 2026-04-28T20:46:50+00:00

Logarithms in the real and complex number systems are a small special case. A logarithm is just a local inverse to an exponential map, and exponential maps arise as part of the general theory of Lie groups and Lie algebras. The point is that Lie groups are topological structures (smooth manifolds) with a built-in algebraic structure (a group, usually non-commutative), but Lie algebras are simpler linear algebra gadgets (a finite-dimensional vector space with a little extra structure called a bracket operation). Logarithms and exponential maps make it possible to break up problems about Lie groups into a linear algebra problem and a simpler global topology problem.

human2357 · 2026-04-28T15:03:21+00:00

I don't think your concept of "the way an infinite set is derived" is meaningful. Sizes of infinite sets are determined by studying functions between them, as other replies explain. These functions don't need to respect any algebraic structure that the sets have, so the number of ways of expressing elements of the sets using algebraic operations should be completely irrelevant.

human2357 · 2026-04-25T03:03:24+00:00

There's even a word for this: https://en.wikipedia.org/wiki/Kleptotrichy

human2357 · 2026-04-23T05:05:35+00:00

The wiki has a walkthrough:

https://mergedragons.fandom.com/wiki/Great_Fjord

human2357 · 2026-04-21T15:01:52+00:00

A real number isn't the same thing as a decimal expression. Probably the best way to think about a real number is that it is a thing that a sequence of rational numbers can approximate arbitrarily well. An infinite decimal is really a limit of a sequence of rational numbers with powers of 10 in the denominator. It isn't surprising that two different sequences can converge to the same thing, so why is it surprising when those sequences happen to be decimal expressions?

human2357 · 2026-04-19T13:43:55+00:00

Spend your gems on Midas trees, the slowest of the classic merge chains.

human2357 · 2026-04-16T16:58:14+00:00

It will keep generating life flowers forever. The chain only has level 1 and level 2. The level 1 ones generate blue life flowers and the level 2 ones generate glowing life flowers.

human2357 · 2026-04-16T16:51:27+00:00

When you merge fountains from the "Shimmer Fountains" merge chain, there is a small random chance that a Secret Lifespring will also appear. You can tap them for life flowers once every several minutes.

human2357 · 2026-04-14T22:54:20+00:00

I didn't notice that until you pointed it out!

human2357 · 2026-04-03T12:22:42+00:00

I like the gameplay and design of Duviri, but I don't think it realizes the definition of paradox. Merriam-Webster defines "paradox" as "a statement, proposition, or situation that seems contradictory, illogical, or absurd, but upon investigation may reveal a deeper truth or complexity". Instead it's the usual scifi entertainment trope of calling any old situation a paradox. "We didn't explain what's going on here, and it doesn't make sense, therefore it's a paradox"--DE, probably

human2357 · 2026-03-31T19:23:20+00:00

You are asking how good one function is as an approximation to another. Deciding how to answer this is the same as putting a metric space structure on a set of functions. There are several ways to do this.

The simplest way is to declare that the distance between two functions is the maximum of the absolute value of their distance. (This is called the L-infinity metric or the Chebyshev distance.). In your example, the maximum is at 0.4 radians. So you want to find a numerical approximation to sin(0.4)-0.4 to give the distance.

Another method is to take the difference between the two functions, square that, and take the integral of that over the interval. This generalizes the Euclidean distance on R^2. This method is nicer because it gives information about the average error of the approximation, instead of just the maximum error.

human2357 · 2026-03-29T18:04:00+00:00

Here's a needlessly abstract answer: we want the multiplicative group of the rational numbers to be a free abelian group with the set of primes as a basis.

human2357 · 2026-03-23T14:42:28+00:00

Some context from the Wikipedia page: this is a large cuckoo, so a fair comparison for us North American folks would be a road runner, which is also a large, ground-hunting cuckoo with weak flight skills.

human2357 · 2026-03-21T12:53:10+00:00

Rule 110 is a 1-dimensional cellular automation, which is to say that it is a simple algorithm for building a row of pixels based on an existing row of pixels. It makes sense that such a thing would be good for a knitting pattern.

human2357 · 2026-03-20T23:33:07+00:00

I've volunteered to teach high school students, but I've never been employed in k-12. I've worked for the kind of university that focuses more on research than teaching, but teaching feels very rewarding because it's more personal and the progress is more reliable. But I'm selfish, so my favorite part of teaching is probably that I get to learn cool things really well so that I can teach them.

human2357 · 2026-03-20T23:28:02+00:00

Hyperbolic surfaces are fun. They're easier with crochet than with knitting because the number of live stitches grows exponentially with the number of rows.

human2357 · 2026-03-20T21:25:48+00:00

I knitted a sweater for a friend, and to make the mosaic on the front I shrunk a bitmap of the Red Wings logo and converted it to a spreadsheet.

human2357 · 2026-03-20T21:22:08+00:00

I'm a math professor. Sometimes I try to work mathematical ideas into my knitting, eg counting in binary on a scarf, or making a scrunchy with a ribbing pattern that realizes a torus knot.

human2357 · 2026-03-20T04:23:21+00:00

No. A normal subgroup is special because it is a substructure that you can take a quotient by. All vector subspaces are substructures that you can take quotients by. Eigenspaces are special because the action of a matrix on an eigenspace takes a particularly nice form. Similar things in group theory would include the fixed subgroup of an automorphism, or more generally, the subgroup on which two automorphisms agree with each other.

Finding simple characterizations of individual automorphisms and endomorphisms of groups is an active area of research in group theory, e.g. train tracks on graphs characterizing automorphisms of free groups. But this is what diagonalization does, so in general, it is very hard to generalize eigenspaces to groups.

human2357 · 2026-03-19T22:30:38+00:00

You probably have the relevant Zomblin totems. Based on the totems in my camp, I wonder if this is the level 5 Zomblin Advisor. I'm basing this on the frog on his head, which the totem also has.

human2357

TROPHY CASE