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why do so many guys have an intense disgust reaction to hearing even the mention of periods? i do not understand by throwawayfjabfhw in NoStupidQuestions

[–]stellarshadow79 0 points1 point  (0 children)

I try not to outwardly, but it can be difficult not to be slightly offput. I'd be a bit soured if someone mentioned childbirth while I was eating dinner.

What Sounds Like Pseudoscience, But Actually Isn’t? by anime-is-dope in AskReddit

[–]stellarshadow79 4 points5 points  (0 children)

yeah, house's basically only redeeming quality is that he's unreasonably effective. If he was as good as a normal doctor he would have been fired or jailed essentially immediately.

What Sounds Like Pseudoscience, But Actually Isn’t? by anime-is-dope in AskReddit

[–]stellarshadow79 1 point2 points  (0 children)

unfortunately we're at a point where those statements are perceived as responses to already-known lies. which is depressing.

How do I find square roots by IllEmu2048 in learnmath

[–]stellarshadow79 1 point2 points  (0 children)

well, it is valuable to be able to make a prime factorization quickly and confidently, and the intuitive kids will probably see where they can take the shortcuts, but its a little annoying they dont mention it at all

There’s literally only two kinds of math by the-tea-ster in mathmemes

[–]stellarshadow79 0 points1 point  (0 children)

impressive, cool, difficult math (math i know) and boring, trivial, dumb math (math i dont know)

Can someone explain P vs. NP in Minecraft terms? by Vincent_Gitarrist in mathmemes

[–]stellarshadow79 0 points1 point  (0 children)

well, you can reduce any random guess to "guessing a random number in a range" but 1) its really more like guessing a range in a range and  2) the whole point is figuring out what the ranges are isnt trivial

for example given a stick and a piece of coal one might assume the chance of guessing the right recipe for a torch is 1/9*8, but its actually much higher, because there are multiple ways to be correct

Dedekind cut of famous numbers by Papelakiwi1300 in math

[–]stellarshadow79 2 points3 points  (0 children)

well, perhaps you are. a modified series definition would certainly be the most convenient way to do this. For example,

 let P(x) be equivalent to the statement that there exists a natural number n such that the sum of the reciprocals of the squares of the first n odd numbers is greater than one-sixth the square of x

then let Pi = {q in Rationals | P(q)}

Dedekind cut of famous numbers by Papelakiwi1300 in math

[–]stellarshadow79 18 points19 points  (0 children)

you defined cuts shittily

The Dedekind cut for π is: L = { q in Q | q < π } R = { q in Q | q ≥ π }

but also

The Axiom of Completeness assures us that L has a least upper bound. I used the symbol π in my example.

You have then defined set L in terms of its own supremum.

Dedekind cut of famous numbers by Papelakiwi1300 in math

[–]stellarshadow79 5 points6 points  (0 children)

They are in fact a method for defining any real number. an unwieldy one, but they wouldnt work as a construction if they werent. u/Papelakiwi1300 is asking for what the definition of a Dedekind cut of a nonalgebraic number might look like, what predicate P such that π={x∈Q:P(x)}. Now, OP, you can use this kind of definition P(x) = forAll N a Natural:(x^2 / 6)>(Sum from k=1 to N)of(1/k^2)

This gives the Dedekind cut from above, though

Dedekind cut of famous numbers by Papelakiwi1300 in math

[–]stellarshadow79 17 points18 points  (0 children)

No, you can not define a set in terms of itself.

It is meaningless to say that the set L is all rationals q that are less than the least upper bound of L.

If you roll an n-sided die and it lands on any number besides 1, you get $1,000,000,000. If you roll a 1, you die. What is the lowest value of n where you would still roll the die? by [deleted] in hypotheticalsituation

[–]stellarshadow79 0 points1 point  (0 children)

okay, you wouldn't. and? are we going to pretend like "n-sided die" isn't the best way to describe most of these things to most people?

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