Archived threads in /sci/ - Science & Math - 87. page

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>>9141474
Nobody knows more except on what you mentioned.
Another thing is the obvious psychological problems in the man's life, just like your post.

But real physical problems then it would just be not enough masturbation and having too much old sperm because circumcised men masturbate less than the uncircumcised because of the obvious lube thing.

But then again a circumcised man can masturbate on the low end of the penis.
My only hypothesis on this is that a circumcised man's penis COULD be a lot skinnier if said man masturbates on the lower end a lot.

But no one has done any studies because of privacy things and such, as well we would have to test it on a recent kiddo that JUST started puberty and blah blah blah.

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>>9141604
Sorry for the spacing as well.

And currently that's all I know, maybe a pre-med can BTFO me desu.

>>9141474
>>>/jew/

You like Neil deGrasse Tyson? Name 5 of his discoveries.

>>9134346
>trolling on /sci/ is hard
>>9132254 has over 200 replies
Really makes me think

>>9134351
Part of the issue with trolling on /sci/ is often, like in a large portion of that thread, there's valuable discussion started by anons with each other, ignoring the bait. You'll get a few responses seriously addressing the troll OP, but then it usually turns into everyone laughing at the idiots and discussing ideological differences or taking shits on each others' field, saying that X is better than Y at understanding phenomenon Z.

>>9142696
Glass water jug btw

quantum tunnelling

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>>9142701
Interesting

18
2ez

>>9142464
focus your pic please

>>9142481
2 - 18 - 1 - 9 - 14 - 16 - 15 - 23 - 5 - ?

>>9141409
Jebs

Is there any point in living if you don't enjoy math?

>>9141409
i think it helps with pattern recognition and data parsing
even if you're not actively applying formulas, you're teaching your brain abstract connections between things you encounter, and that helps not generalize and gloss over a lot of experiences you have in life

>>9141177
holes that are black

>>9141177
A zero-dimensional dot containing the mass of a star.

>>9141177
My girl's asshole and pussy

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>>9143731
>one thread wasn't enough

You guys mixed up your shifts or what? There's already a race bait thread.

1.) clearly defined boundaries between "races" are a social construct. there are definitely groups of people tied by genetics, but there is overlap with nearby groups and so on.

2.) there are minor differences between groups and they show at the highest level. the differences don't make much of a difference at average levels in large groups.

3.) citation needed for such a bold claim

4.) even if we are different, thinking in terms of groups and not individuals is very un-American and very old fashioned.

Something similar happened to the Muslims though. I believe the Library of Alexandria was burned down by the Christians too. If it wasn't burned down, we could've been on the moon way earlier.

>>9143106
>Implying all those commentaries on the Iliad would make good rocket fuel

This one time back in the day, religion made scientific progress halt for hundreds of years lmao by like killing people n stuff

https://williamsinstitute.law.ucla.edu/wp-content/uploads/AFSP-Williams-Suicide-Report-Final.pdf

Has a pretty comprehensive collection of trans suicide within the US

>>9142953
Thanks for the source anon!
Do you know where I could possibly find a source similar to the one you posted but of trans adolescent suicide rates, and or depression rates?

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>>9142976
Have you tried google?

>>9142567
I used Carothers' book for real analysis and found it pretty similar in style to Spivak. It also segues quite well.
Analytic geometry is not something anyone studies in university. Maybe a little bit in calc 3.
In terms of style of writing the closest algebra book is probably Herstein.

>>9142575
By equivalent I meant the GOAT books on these subjects. Sort of all like how Spivak is put up whenever Calculus is mentioned.

>>9142567
Apostolic is better

give me a good explanation of a Lie group for someone in linear algebra

bitch i just bought a fat bag of math i dont need no handouts

keep your algerbra cut with common core to yourself

>>9142520
Mathematics
Matrices & Linear Algebra
Matrix Arithmetic
do basic arithmetic on matrices
{{0,-1},{1,0}}.{{1,2},{3,4}}+{{2,-1},{-1,2}}
{{2,-1,1},{0,-2,1},{1,-2,0}}.{x,y,z}
Matrix Operations
compute properties of a matrix
{{6, -7, 10}, {0, 3, -1}, {0, 5, -7}}
compute the rank of a matrix
rank {{6, -11, 13}, {4, -1, 3}, {3, 4, -2}}
compute the inverse of a matrix
inv {{10, -9, -12}, {7, -12, 11}, {-10, 10, 3}}
inverse {{a, b}, {c, d}}
{{2,3},{4,5}}^(-1)
compute the adjugate of a matrix
adjugate {{8,7,7},{6,9,2},{-6,9,-2}}
Trace
compute the trace of a matrix
tr {{9, -6, 7}, {-9, 4, 0}, {-8, -6, 4}}
tr {{a, b}, {c, d}}
Determinant
compute the determinant of a matrix
determinant of {{3,4},{2,1}}
det({{9, 3, 5}, {-6, -9, 7}, {-1, -8, 1}})
det {{a, b, c}, {d, e, f}, {g, h, j}}
Row Reduction
row reduce a matrix
row reduce {{2,1,0,-3},{3,-1,0,1},{1,4,-2,-5}}
row reduction calculator
Eigenvalues & Eigenvectors
compute the eigenvalues of a matrix
eigenvalues {{4,1},{2,-1}}
compute the eigenvectors of a matrix
eigenvectors {{1,0,0},{0,0,1},{0,1,0}}
compute the characteristic polynomial of a matrix
characteristic polynomial {{4,1},{2,-1}}
Diagonalization
diagonalize a matrix
diagonalize {{1,2},{3,4}}
Matrix Decompositions >>
compute the LU decomposition of a square matrix
LU decomposition of {{7,3,-11},{-6,7,10},{-11,2,-2}}
compute a singular value decomposition
SVD {{1,0,-1},{-2,1,4}}
Transformation Matrices >>
compute a 2 x 2 rotation matrix
rotate 30 degrees
compute a 3 x 3 reflection matrix
reflect across x+y+z=1
Types Of Matrices
determine whether a matrix has a specified property
Is {{3,-3},{-3,5}} positive definite?
get information about a type of matrix
Hilbert matrices
Hankel matrices
specify a size
5x5 Hilbert matrix
Vector Spaces
compute the row space of a matrix
row space {{1,2,-5},{-1,0,-1},{2,1,-1}}
compute the column space of a matrix
{{1,0,-1},{2,-1,3}} column space
compute the null space of a matrix
null space of {{1,0,-2,1},{2,-1,1,0},{0,2,-3,1}}

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>How fucked am i?

Better be fucked than a virgin. That's a proverb that I've invented. You can use it if you remember to mention me as its author.

I don't know if this works but try this right now
https://www.youtube.com/watch?v=2yDCox-qKbk

>>9142508
I tried but it didn't work. Thanks though!

>>9142287
>what is the twin paradox?

If you're going to run something like this, you have to also disprove the resolution to the paradox. I.e. relativistic doppler shift.

>>9142305
Any possible argument implying it should be A>B can be reversed in the same way that to imply that B>A. This is really what it means that "the laws of physics apply to all references frames"

>>9142287
>Disproof of
Stopped reading

> can control weather

Good luck with that.

>>9142205
Depends on what's left after WWIII. jk
Last time I checked we were a type 0.72 or something (which is still a long way to go since its a logarithmic scale)

>>9142205
>master of the planet
>can fully harvest planets energy
>can control weather
Sounds like ecological systems before humans fucked it all up
I'd say we are .3 and dropping on this ridiculous pop sci scale

>>9142127
>Not using an regular ink pen
might as well go to a indie coffee shop and circle jerk

>>9142335
> implying any crappy disposable pen can compare in terms of comfort

>>9142342
>Be a faggot that gets uncomfortable because of a pen
It's a fucking pen dipshit