Archived threads in /sci/ - Science & Math - 1536. page

It feels like unmitigated contempt for those less intelligent than you

In other words, it's indistinguishable from being a douchebag

Same way it feels to be an accomplished author, except you get to make people toys instead of interesting fiction

It feels alone.

>>8191901
> anyone

probably

You don't want their implants.
Best to stay natural.
They'll get you with the implants.

>>8191901
bump

>>8204877
>Any other opinion from you guys?
I think you're getting upset over nothing.

Anyway, what makes you think the woman got the answer right for the wrong reasons? You worked it out, didn't you?

>>8204904
>I think you're getting upset over nothing.

I just participated in a thread, where people called me mentally ill and thick retarded fuck...

...for thinking like that, i sort of wanted a neutral opinion from the sanest board on 4chan.

>>8204913
It's still 4chan, you thick retarded fuck.

>>8200610
In the words of my grandmother

"Oh, I love philosophy. It's a great hobby and only a hobby."

Useful to learn about oneself and how to organize thoughts and ideas. The people that study it though are generally pretentious even by /sci/ standards so there's a reflexive denial.

>>8200615
There are definitely alot of edgelords who study philosophy to try and be "le superior intellectuals". But everyone I know who's actually graduated with a philosophy degree or read enough over the years are fine. Is it because people only get exposed to philosophy on places like 4chan?

>>8200610
We don't mock philosophy. We mock postmodern philosophy and continental philosophy.

https://www.youtube.com/watch?v=3SUWK_pWrbw

i think that transhumanism is hocus pocus

>>8199372
>neural enhancements that would increase intelligence
Genetic engineering et al. and even then it's a crap shoot. The brain is too complicated to just stick a computer chip into.

I think that we should focus on mammilian brains.

Raven and octupi might be intelligent but I doubt that the research would be applicable to humans.

The brain would have to be large so that would mean either primates, pigs or cetaceans. I would focus on the primates. Pigs are not the best candidate and cetaceans (although very smart) would require far to many resources to care for.

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Let's try to understand what is being asked. First let's write the problem in matrix notation:

[eqn]
\left[ \begin{array}{ccc} 1 & 3 & 4 \\ 2 & 1 & 3 \\ -1 & 2 & 1 \\ \end{array} \right]
\left[ \begin{array}{c} x \\ y \\ z \\ \end{array} \right]
=
\left[ \begin{array}{c} 0 \\ 0 \\ 0 \\ \end{array} \right]
[/eqn]

You are tasked to find the solution set for this system of equations. That means you want to find every [x;y;z] (column) vector that satisfies the equation.

It is a basic fact of LA that the solution set to a linear system either has 0 solutions, 1 solution, or infinite solutions. If you did not know this, we can go over the proof.

So the question is asking you to find a basis for this solution set of (column) vectors, so necessarily the basis will be composed of column vectors. Capiche?

To solve systems of equations, we often use elimination, as you attempted. Unfortunately you didn't correctly calculate the Reduced Row Echelon form of the matrix (don't sweat it, it's really easy to make an arithmetic mistake). The matrix you should arrive at is:

[eqn]
\left[ \begin{array}{ccc} 1 & 3 & 4 \\ 0 & 0 & 0 \\ 0 & 0 & 0 \\ \end{array}\right]
[/eqn]

Now that the matrix is in RRE form, it should be immediately obvious that there is only one free parameter (if not, review elimination and free parameters). That tells us that the dimension of the solution set is 1, or in other words a line. To calculate a basis for this line, we just have to find one non-zero vector on the line; any other solution is simply a scaled copy of the basis vector.

For arbitrary problems, you finish the full blown Gauss-Jordan Elimination algorithm to get an answer. In this case, it's not hard to see that only the first equation matters from the RRE form, and it's easy to see by inspection that one solution to this system is [-1;-1;1]. Granted, any non-zero scalar multiple of this vector is also a valid basis vector, so something like [2;2;-2] is also a valid answer.

Make sense?

>>8191116
Wow, you are phenomenal, thanks so much! This all makes a lot more sense to me now.

The problem i am still having now is that i cant get the RRE form :(

I'm not sure what i'm doing wrong.

1 3 4
2 1 3
-1 2 1

to

1 3 4
0 -5 -5
0 5 5

to

1 3 4
0 -1 -1
0 1 1

to

1 3 4
0 1 1
0 0 0

I thought i understood elimination and gauss-jordan elimination but i guess not :(

>>8191021
They're asking for the nullspace.

>0x -5y -5z =0
This tells you z=-y
>1x + 3y + 4z = 0
>1x + 3y - 4y = 0
This tells you x=y

So all solutions are of the form (x,x,-x) for any x. This is a 1 dimension space.

>>8197833
probably crypto researcher for the NSA

>>8197833
First finish high school, kid.

>>8197833
I don't think someone can do well in math with that kind of spirit. Either you study math because you like/love it either you do engineering/business studies.

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>>8205628
hm

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>>8205633
> philosophy

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>>8205642
Problem?

>>8200097
There's literally no way it can reduce emissions. Aside from that, if your shit isn't tuned for it, it won't be good.

>>8200103
It comes with a tuner if you buy the right kit.

What about the cleaning aspect? Will it clean out carbon/sludge?

>>8200097
No.
>>8200113
Just no.

>>8200508
Ruined his acting career with iron man

>>8200512
10/10 would laugh again

[eqn]
\begin{pmatrix} a \\ a \\ a \\ a \\ a \\ a \\ a \\ a \\ a \\ a \\ a \\ a \\
\end{pmatrix}
[/eqn]

Good idea for a thread OP

[eqn] \oint_{ \partial S } F \cdot \mathrm{d} s = \iint_S \mathrm{curl}(F) \cdot \mathrm{d} \Omega [/eqn]

>>8189773
Whoops that first integral shouldn't be an \oint.

>>8200781
The one where you have a stable job.

The one where you make lots of money.

>>8200781

Loft goblin.

Wholegrains aren't bad.
Have any of you even heard about rye?

>>8198954
>calls something meme unironically
>people try to find reasons for why they are stupid.
>yeah i might as well start dehydrating myself!!!!1!! its doesn't matter if im genius LOL XD

>>8198972
>we talk about optimizing the brain
>UNLESS YOURE NOT GINIOUS NOTHING MATTERS KID :^)
YES

we can't

>>8204025
I second this.

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>>8204025
>>8204030
Maybe we just need to try harder.

>>8201694
burn it down

>>8201694
I think they're taking a safe shelter for their worms while they seek a new place.

I don't think they'll make a new nest in some place that isn't underground.

just leave them alone for a few days and remember to report what is happening.

Stop being a pussy, go to your local Home Depot and buy a nice vacuum cleaner and some sealant, go back home and spray the shit out of those fuckers, vacuum them up and use the sealant.