Septimaeus

joined 1 year ago
[–] [email protected] 5 points 11 hours ago* (last edited 16 minutes ago)

More abstract means more simple/general, but it’s easy to get lost if you weren’t ready to have concrete examples taken away, so examples are included for each translation below.

Note for the mathy: the following is supposed to be layman’s terms but if there’s a major inaccuracy please correct me.

1. A chu space is a “binary relation” between two sets. In other words, it can be represented as a matrix of pairs. E.g…Think of an ordinary table, where each cell relates a row to a column. A common application of chu spaces is computation, so imagine how rows could refer to possible states of a program and columns could represent the events transitioning one to another. Each cell would then represent an incremental change to a particular state.
2. “Extensional” means each point extends (originates from) another, up to an arbitrary point. E.g…Imagine you’re exploring a forest and you can see your footprints behind you, a trail going back to wherever you started. Where you are now is your last step as an extension of every previous step you took.
3. Dropping the “closure requirement” means a given point need not be reachable from every other possible point. E.g…If you delete a file in a folder, but decide instead you wanted to rename it, you might not be able to get to the desired state in a single logical step. First you may have to reverse the last step (deletion) then execute the next (rename). So the set of points wouldn’t be closed topologically.
4. “Two-valued” refers to the two sets mentioned in #1, since each side of the mapping is needed to avoid ambiguity of extension mentioned in #2. E.g…Consider that, in the forest example, your footprints tell you not only where you stepped, but also in which direction you stepped. This information would be important to know how to reverse your steps if, for example, you walked through the same area more than once.
5. The static matrix of #1 is a single slice of a more dynamic "continuous function” that lets us see how a chu space transform over time. E.g…In the file system example of #3, we wouldn’t want to literally represent each state and potential event in a matrix. Instead, we would consider the static matrix of as a “snapshot” of a larger continuous series of file system changes. (And it so happens that this is basically how incremental backup and version control systems tend to work.) Instead of fixed sets we would then have complementary functions mapping states forward to an event and mapping events backwards to a state.

[–] [email protected] 5 points 14 hours ago
[–] [email protected] 4 points 5 days ago

[static]
…and that Nuka-Cola Quantum colored sun…
[hiss]
…well it sets on the smooth and the unsmooth alike…
[static]
…so keep on the sunny side, friend, and choose Big Boss cigarettes for that smooth flavor…
[pop]

[–] [email protected] 2 points 6 days ago (1 children)

The latter, for Roth IRA.^A^ If you haven’t set one up before, it’s pretty straightforward.^B^

^A^: There is such a thing as a Roth 401(k) which if offered should definitely be your top priority up to employer contribution match.

^B^: Vanguard is often recommended for simplicity and low fees. You can pick your funds when contributing. Typical starting funds are VTI and VOO (or the mutual fund equivalents with slightly lower fees, VTSAX and VFIAX).

[–] [email protected] 1 points 6 days ago

Minor note: considering MLO, WiFi 7 with 6Ghz/160 is definitely not equivalent to WiFi 6.

[–] [email protected] 3 points 6 days ago

Yeah those plastic ones are probably a quicker install too. The tempered glass in the photo is heavier than it looks.

[–] [email protected] 1 points 6 days ago* (last edited 4 days ago) (1 children)

Pretty sure these boards are all using the same Intel module.

[–] [email protected] 8 points 6 days ago* (last edited 6 days ago) (3 children)

Too nice for any N. American prison, unfortunately. This is just a bathroom reno.

Since they put the vinyl film on the glass after assembly (to avoid scratches) there’s an opportunity for this picture during every installation. Frosted matte translucent film is most popular.

[–] [email protected] 2 points 6 days ago

Qiskit has been OSS for years. This is about the release of the pro-dev-focused Qiskit Functions Catalog and the Qiskit Addons extensibility that componentizes them.

[–] [email protected] 2 points 6 days ago* (last edited 6 days ago) (3 children)

Roth grows tax-free and has more long term flexibility compared to traditional IRA. The tradeoff is that it doesn’t reduce your taxes in the year you contribute. It’s the better option for most.

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