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Archived threads in /sci/ - Science & Math - 1764. page

This is a blue board which means that it's for everybody (Safe For Work content only). If you see any adult content, please report it.

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So, I'm in the uni and this engineer is my teacher.

>"And you can see that the Karnaugh map is a sphere"
>"Professor, I think you mean't a torus, not a sphere"
>"It's a sphere"


Why they're allowed to step into academic ground after they conclude their glorified technician courses?
13 posts and 4 images submitted.
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>>7982127
>Professor makes mistake
>Doesn't wanna listen to a Freshman shitter
>Doesn't deserve to be in academia
>>
>>7982127
Bro when applied from every angle it's a sphere.

If you want to get technical it's a sphere within a sphere with an infinite potential matrix sequence between them

Profs have studied this shiz way more than you you're bringing your ignorance to class for a reason
>>
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>>7982137
>>7982132
sure

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Is it possible to have a species that is global to not have a sub-species?
18 posts and 2 images submitted.
>>
What a boring question
>>
What an interesting question
>>
>>7982123
Sub-species is a meme anyway, it doesnt mean anything specific

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Is there a way to rapidly change the electrical conductivity of a sheet of material? Is something like this possible or does it exist?
13 posts and 1 images submitted.
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>>7982005

electrical characteristics of different materials change with temperature

but this usually isn't practical

what are you trying to do?
>>
>>7982017
I want to change the electrical conductivity of part of a reflector for an antenna, but I don't think it's possible.
>>
>>7982005
changes in pressure or temperature. this is actually the basis for most electrical sensors.

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>>7981934

CROOKED NEEDLE
>>
this is just a brute force problem and it's extremely distasteful
>>
You can't solve this without knowing the number of people on the plane, the type of plane, the weathet, the terrain it's flying over, etc.

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Have you ever crushed on a hot professor?

Ever had sex with one?
22 posts and 2 images submitted.
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exchanged hj's with my calc iii instructor
>>
No but when I was taking a class at community college the professor was dating my roomate
really really weird situation

ended up dropping the class and moving cities anyway but still very strange
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>>7981852
> integral calculus

this is likely some masters-tier normie

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Which Big 10 school has the best engineering program?
19 posts and 1 images submitted.
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The yellow M
>>
Minnesota, far and away.
>>
>>7981723
Depends on which type. Probably Illinois, but school rank isn't important when applying for engr jobs. Like at all.

Visit the schools and decide which one you like the best.

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Do not understand why always everything grandiloquent of the culture of the land must always be attributed to aliens, that is belittling human intelligence, as we are always a few apes, if it had been made by aliens would have minimal electrical connections and traces of something computer at least, it's just stone and wood, stop fucking with supernatural inventions, it is good you make money with it but at the expense of the ignorance of people, such as history of ci-fi is exciting but not more than that. There is no hard evidence of nothing.
17 posts and 4 images submitted.
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The internal ramp theory by that one gaylord frenchman is so far the most plausible explanation for the construction.
>>
Forcing thousands of slaves to work every day for years seems pretty legit.
>>
>>7981531
they weren't slaves and they weren't forced. most of them were highly skilled laborers.
it might help if your knowledge of the pyramids wasn't limited to some book you read in 3rd grade

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Dear /sci, I come to you as the second most clever board after /lit/

I watched these videos recently, 1st is 5 minutes

https://www.youtube.com/watch?v=ME7K6P7hlko
https://www.youtube.com/watch?v=7sArXw6ajNg

1st question, are they making any logical errors? If so, what?

2nd, Is it true that Legalese is a separate language to English, as it requires its own dictionary

3rd, where does sovereignty come from? Are we born with it, and somehow give it away? Where does it reside?

4th, why are banks called the same things as the sides of rivers?

5th, why do prisoners/defendants stand in the "dock"? are they boats?

6th, can you be joined to a society without your knowledge or consent?

7th, am I an idiot for giving these ideas any credence?
thank you for your consideration
18 posts and 2 images submitted.
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>>7981504
I mostly browse /lit, but I can confirm that /lit is 75% DFW and Pynchon memes, 24% retarded questions like "is this book good? what did you think of x? should I like x? how do I start with the Greeks?" and 1% good content.
>>
We don't know how to socialize with other boards. Please go.
>>
>>7981514
but you are the most logical board? the most knowledgeable about the real world?

Please, I need answers

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What's the scientific principle or "law" that states that something like 99% of the work is the easiest, or least expensive, but that that last 1% of precision is the most difficult to attain, or the costliest. I think I've seen it applied to engineering, but it applied to pretty much everything.

Anyone know off the top of their heads?
15 posts and 2 images submitted.
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bump for interest
>>
>>7981447

Bumping
>>
>>7981447

Low hanging fruit analogy

Hello, Logic

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n/((n!)^(1/n))=e, when n->oo.

What is the best way to conceptualize this?
Geometrically, analytically, etc?
14 posts and 3 images submitted.
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move your mouse for fuck's sake, it's triggering me
>>
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>>7981434
>>
Can we think of the limit of a fraction of two infinite quantities being e?
Natural infinity divided by the nth root of the factorial of natural infinity being e, is this an intuitive way to approach the limit?

You have 100lbsof potatoes, which are 99 percent water by weight. You let them dehydrate until they're 98 percent water. How much do they weigh now?
16 posts and 3 images submitted.
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>>7981343
Get out high school
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>>7981343
Roughly 51 lbs.
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>>7981354
51.2 lbs to be exact

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What area of math can I begin learning before I have completed calculus?

I am doing Spivak's Calculus (3rd, if it matters), and am about 3/4 through (currently doing Ch23: Infinite Series). However, it gets a little tiresome doing only calculus. Is there any other area that I can do alongside calculus, where my incomplete knowledge of calculus will not prevent me from getting a handle?
I have already gone through Euclid's Elements, if anyone was going to recommend that, or if it will open up more opportunities for me.
If possible, please recommend textbooks (preferable), online courses, or any other good material to learn from. I have no real budget.

Thank you in advance!
11 posts and 1 images submitted.
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What are your objectives? You can do most of basic pire math without calculus. You can learn discrete mathematics, linear algebra, abstract algebra, number theory all without calculus. In fact you don't see any calculus in those courses except maybe as examples.
Realistically you can also learn complex analysis without calculus (up until you're differentiating and integrating but it sounds like you're way passed that point). Hell, you can do basic Analysis without calculus.
>>
>>7981327
Linear algebra, general topology.
If you defend yourself well enough, you can start with analysis too.
Actually, calculus is very applied math, and you aren't probably facing those monster integrals again in your life, unless you do something really specific.
>>
>>7981337
I have no real objectives. I am a first year student in mathematical physics, so I guess anything that can help with physics is ideal. Really though, I am just learning for fun and a challenge, since my current courses are easy, and they won't let me take the advanced math courses since I am in the science department, instead of the math department.
All of my maths courses so far have been calculus, and linear algebra (which is easy, but pure agony).

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Is math a social construct?

Race and gender are social constructs, so why not math?
12 posts and 2 images submitted.
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>>7981250

You're an asshole.
>>
>>7981252
Just because tolerance is only a social construct doesn't mean you have a right to ridicule those with different opinions than your own. Asshole.
>>
Is an asshole a social construct? Like genitalia?

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Is addiction a meme illness? There clearly is something going on, because people die over it. Fatties eat themselves to death, pedos are unable to stop themselves from trying to hook up with underage girls online even after being caught, junkies OD and die, etc. It's all the same 'illness', but the fixation of choice differs.
19 posts and 1 images submitted.
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addiction is more often a symptom of an underlying problem rather than an illness in itself
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>>7981162
>OP is a pedo and is subtly trying to understand his problem while framing it as an addiction
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>>7981191
https://www.youtube.com/watch?v=FZK7Zx7s0Vg

rewatching To Catch A Predator and I remembered this guy

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Talking about dimensions of a mathematical space , I wondered what does link a n dimension to a n+1 one.
However, I couldn't figure out even how to define a dimension : I thought about using matrice (1,n) and even (n,n) but none of them worked or seems to link from one to another.
Any idea ?
11 posts and 1 images submitted.
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>>7981156
>Any idea ?
Learn English
Learn math
>>
>>7981197
Sorry genius, help me out if it's so simple
>>
>>7981156
>I wondered what does link a n dimension to a n+1 one

a map f so that, for example, (a,b,c,d) --> (a,b,c,d,0)

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