Archived threads in /sci/ - Science & Math - 991. page

m mod n obviously

>>8592831
>what is that | operator meant to mean there

In C | is the bitwise OR operator.

That said, that thing overall doesn't make sense. C doesn't have gay keywords. The modulus operator is simply %

>>8592831
isnt that n choose 0

>>8592808
>is it possible to just straight up take an element and subtract a value

I don't know. Try to prove that "substracting a value" preserves the row space of a matrix and then call me when you find that it is contradictory or you found a dead end.

>>8592822
what? I mean as in can I take the first element of row 2 and subtract 0.00038 from it to give me 0 or is that not how it works?

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BRAINLETS GET OFF MY BOARD
FUCKING BRAINLETS REEEEEEEEEEEEEEEE

>>8592725
>Caring about other people copying
In Russia, you'd be considered a bitch

it's easy senpai just stop being a brainlet

>>8592731
Why so?

People have no bussiness looking at my shit unless I say otherwise.

>>8592699
I am no brainlet so I always answer everything but I hate that every time I walk out of a test my brain just keeps thinking about my solutions and then what sucks is when I actually find a mistake in my test after I am already out.

It feels retarded. Why am I even thinking about the test when I can no longer change anything? Fuck. I wish there were drugs that could help with this.

The smartest people are the ones than can think deeply but also can think superficially. They switch their way of thinking according to the situation. You seem to be pretty smart, but not so much as the brainlets (you claim to be brainlets) who actually solve the problem faster than you. Maybe they are capable of thinking deep, but they chose not to because they had to be quick.

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This is more of a problem of educational structure itself.
Exams are totally pointless and serve no greater purpose other than to meaninglessly drive people away from achievement.
Just look at the SAT, this determines you ability to get into certain schools.
You can know how to solve every problem on the SAT yet get a poor score due to the time limit.
In fact every SAT study guide, guide book, stagey book, etc advises test takes to skip hard questions and instructs test takes on how to identify hard problems and easy problems. I ask, what is the purpose of a time limit? Is the SAT (or any timed exam) supposed to measure your ability to solve the problems presented or your ability to answer easy question within a time limit?
Equal weighted questions
Time limits
Variable weighted questions
Why? It makes no sense as it truly doesn't measure ones ability to solve problems

>>8592546
Starve and meditate in sunlight.

Not joking

>>8592546
Sometimes got to accept fate

>>8592546
dont fall for memes big guy

>>8592517
you goofed in that you replaced delta x with 2+3/n.
x_i also isnt 2+3/n but 2+3i/n.

>>8592542
delta x is 3/n.
x_i is 2 + 3 i /n
plug those into the sum, get sum sums of square... you just need the formula for sum i^2 and sum i.

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>>8592542
ah my bad. ok i think this works better.

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Currently eating a gram over eggs because that's my favorite way to enjoy them. Does anyone understand exactly how they release serotonin? I know they mimic the male pigs sexual scent but that's all I know.

>>8592202
Magnatum*

>>8592202
you could have sold it for a few grand...

>>8592080
Smoke entire packs at once, multiple times a day? Like a little contraption that lets you drag on multiple cigarettes in one go.

>>8592080
Melt plastic and inhale it

open up a couple smoke detectors and eat the contents

order some nucleotide-intercalating-dyes like ethidium bromide or propidium iodide

expose yourself to lots of formaldehyde vapors

>>8592071
Complex numbers are useful in math modeling. You model math in physics.

Example: optics and qm.

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http://www.ams.org/notices/200902/rtx090200212p.pdf

>When I look at the history of mathematics, I see a succession of illogical jumps, improbable coincidences, jokes of nature. One of the most profound jokes of nature is the square root of minus one that the physicist Erwin Schrödinger put into his wave equation when he invented wave mechanics in 1926. Starting from wave optics as a model, he wrote down a differential equation for a mechanical particle, but the equation made no sense. The equation looked like the equation of conduction of heat in a continuous medium. Heat conduction has no visible relevance to particle mechanics. Schrödinger’s idea seemed to be going nowhere. But then came the surprise. Schrödinger put the square root of minus one into the equation, and suddenly it made sense. Suddenly it became a wave equation instead of a heat conduction equation. And Schrödinger found to his delight that the equation has solutions corresponding to the quantized orbits in the Bohr model of the atom.

>It turns out that the Schrödinger equation describes correctly everything we know about the behavior of atoms. It is the basis of all of chemistry and most of physics. And that square root of minus one means that nature works with complex numbers and not with real numbers.

>All through the nineteenth century, mathematicians from Abel to Riemann and Weierstrass had been creating a magnificent theory of functions of complex variables. They had discovered that the theory of functions became far deeper and more powerful when it was extended from real to complex numbers. But they always thought of complex numbers as an artificial construction, invented by human mathematicians as a useful and elegant abstraction from real life. It never entered their heads that this artificial number system that they had invented was in fact the ground on which atoms move. They never imagined that nature had got there first.

In optics the imaginary part of a wave describes the phase.

The imaginary part of a material's refractive index describes absorption.

>>8591608

Yes, he'd be flung off the rod by centripedal forces. As to how fast a rod can spin, it depends on the material the rod is made of, the size of the rod, whether it's in a vacuum, etc etc etc, but the "hard limit" is presumably some large fraction of c.

>>8591608
>spin on itself
wat

>>8591608
You'd need to know its tensile strength.

>>8591362
>discrete probability

Discrete probability is just continuous probability with Heaviside-Dirac delta functions.

>>8591369
>functions

>>8591398
Yes a function who's value is the unit infinity at 0

>>8591359
>arguing
You fight back, physically. Sticks and stones will break their bones but words will never hurt them.

>>8591359
Mildy obscure, but found it a great read: https://www.amazon.com/Winning-Debates-Steven-Lee-Johnson/dp/1932716513

Also check out how to win friends and influence people, more of a classic.

>>8591153
Me too. CS degree in 2001, never used it.

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>>8591153
I did Chemical Engineering, graduated and never ended up working in STEM
>tfw too intelligent for engineering

>>8591213
>>8591158
What do you do instead?

if you need drugs to learn you're not smart

>>8591026
no shit retard. im looking for some assistance to increase the speed i learn.

>>8590681
HEUHUEHUEEAHAEHEE AREN'T I JUST SO WACKY WITH MY ECCENTRIC INTEREST IN THIS TWO-DIMENSIONAL MANIFOLD

This is the power of autism

I actually enjoy this guys videos