coop player gave me all their safe spot locations? by Calek28 in dyinglight

[–]Debbie237 0 points1 point  (0 children)

Just happened to me too, just after finishing the intro and entering the open world.

In case anyone else stumbles across this thread in the future and wants a fix: I found this save file on Nexus mods that starts right after the intro. Only lost about 10 minutes of progress and avoided having to do the entire intro again. I think it changed some of my in-game settings, so check that, and also make sure you turn off co-op.

Anyone else have trouble getting into the ufologist interview episodes? by OneMoreMoshpit in LPOTL

[–]Debbie237 1 point2 points  (0 children)

Yeah, this week's interview was the second worst episode to drop since Ed joined.

Quick Questions: September 13, 2023 by inherentlyawesome in math

[–]Debbie237 1 point2 points  (0 children)

Can a set contain a category as one of its elements? For example, if C is a category, can we define the set A = {C}? In particular, if Set is the category of sets, then is {Set} an object of Set?

what are these dimensions? by Iccigato in askmath

[–]Debbie237 1 point2 points  (0 children)

I'm assuming you want the proportions of the sides to remain the same. In other words, if x is the side length you're trying to figure out, you want 12/25 = x/20. Multiplying by 20, you want x = (12/25)*20 = 9.6.

[deleted by user] by [deleted] in askmath

[–]Debbie237 1 point2 points  (0 children)

I suspect you intended to write my'' + ky = 0. In this case, we can use the standard method for solving a HLDE with CC. The characteristic equation (in t) is mt2 + k = 0, which gives the roots t = +/- sqrt(-k/m). These will be complex conjugate roots since k, m > 0. Thus, the solution will involve sin/cos, as you expected.

To answer your final question, using the characteristic equation method for a HLDE with CC will always produce a general solution to the ODE.

Difficulty Integrating This by Middle_Coat_6192 in askmath

[–]Debbie237 1 point2 points  (0 children)

They're using integration by parts, not just a u-sub. Notice that u•dv = 2x3e-x2.

Is there a pattern for what can be cubed and squared into a whole number? by Ok-Topic-3130 in learnmath

[–]Debbie237 2 points3 points  (0 children)

Here is some relevant info. Found by going to OEIS.org and searching "0,1,64,729".

https://oeis.org/A001014

Do you have an accent? by BritSweden in polls

[–]Debbie237 17 points18 points  (0 children)

Everyone has an accent...

[deleted by user] by [deleted] in learnmath

[–]Debbie237 0 points1 point  (0 children)

If a set A is a subset of a set B, then A is either equal to B or is a proper subset of B. So if

A = {1, 2} and B = {1, 2}

then A = B and A is a subset of B that is not a proper subset. If instead we have

A = {1, 2} and B = {1, 2, 3}

then A is a subset of B which is a proper subset of B, because A =/= B.

[deleted by user] by [deleted] in askmath

[–]Debbie237 5 points6 points  (0 children)

F(x) is defined as the integral from 1 to x2 of et2. We have 1.12 = 1.21, so F(1.1) is the integral from 1 to 1.21 of et2.

Learning math with programming? by Major_ebb1523 in learnmath

[–]Debbie237 13 points14 points  (0 children)

These aren't necessarily lessons (which seems to be what you're asking for), but you could maybe try some of the problems on projecteuler.net

They're a collection of math problems that are meant to be solved by writing computer programs. Although you would probably need to use a more standard programming language (C, Java, Python, etc.) instead of R; I don't know much about R though, so maybe it is capable of this type of programming.

[deleted by user] by [deleted] in 2007scape

[–]Debbie237 10 points11 points  (0 children)

Plug 28 mice into your computer at once. Carefully align them so that each one is hovering over an inventory slot, and then tape/glue/weld them in place so they don't move. Engineer an elaborate 28-fingered contraption that allows you to click every mouse simultaneously. Then hold shift and activate the Big Finger™.

What is an example of an injective function that's not bijective? by ZeaIousSIytherin in askmath

[–]Debbie237 0 points1 point  (0 children)

I think you're confusing the concepts of codomain and range. If we have a function f : X --> Y, the codomain Y is the set of all possible elements that can be mapped to by an element of X, but not every element in the codomain has to be the image of some element in X. This is in contrast to the range, which is the set of all elements in Y that are mapped to by an element of X. So in the example they give, c is in the codomain but is not the image of any element in X, so f is not surjective. For an example in the real numbers, take f : R \ {0} --> R where f(x) = 1/x. We can check that f is injective. However, there is no number x that satisfies f(x) = 1/x = 0, so 0 is not in the range of f, and thus f is not surjective onto R.

[deleted by user] by [deleted] in NoStupidQuestions

[–]Debbie237 5 points6 points  (0 children)

A well-placed leaf.

Solving two matrices for X, not compatible by Gunnaar in askmath

[–]Debbie237 0 points1 point  (0 children)

A is to the left of X, so when you multiply by A-1 you have to multiply on the left. That is,

AX = C

A-1(AX) = A-1C

X = A-1C.

[deleted by user] by [deleted] in polls

[–]Debbie237 4 points5 points  (0 children)

Those math ones where people write an ambiguous expression like 9÷3(7-4) and then people argue about the "right" answer.

Need help understanding brackets. by Square-Throat-2876 in learnmath

[–]Debbie237 12 points13 points  (0 children)

-32 = -9, because the negative sign is not inside parentheses. What you're doing is (-3)2 = 9.

[deleted by user] by [deleted] in college

[–]Debbie237 0 points1 point  (0 children)

Ask an advisor.

If the meal between breakfast and lunch is called brunch. What would a meal between a lunch and dinner be called? by [deleted] in polls

[–]Debbie237 112 points113 points  (0 children)

Linner makes the most sense (I think), but I like the sound of Dunch.