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File: 1479371573450.png (179 KB, 462x450) Image search: [iqdb] [SauceNao] [Google]
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>he doesn't use "centigrade" and instead uses "celcius" because he thinks "scientists" attaching their names to simplistic ideas deserve to be immortalised
>he thinks even a single element should be named after a person or a country
>he uses "Newtons of force" rather than "jedis of force"
>he uses "Pascals of pressure" rather than "rectums of pressure"
>he...
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>>8545220
>meanwhile on bizarro /sci/
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>>8545220
>>>/s4s/
>>
>>>/ck/

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Why are black and white people considered to be of the same species, whereas dogs and wolves are considered to be of different species?
8 replies and 2 images submitted. Click here to view.
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>taxonomy
Not science.
>>
https://en.wikipedia.org/wiki/Wolfdog
>Wolf and dogs are interbreedable
>it's not even one-way, meaning male dog-female wolf gives the same result as female dog-make wolf
>biologists still say they're two different species despite the facts contradicting the definition of a species
I guess biofags are just retarded.
>>
>>8544980
I guess that also explains why rafflesia arnoldi is considered a flowering plant even though it has literally no characteristics of a flowering plant

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>tfw your learning algorithm is stuck at a local minimum

How do I convince myself to stop browsing then internet and interact with real people instead?
10 replies and 3 images submitted. Click here to view.
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>>8544772
What? Is this some sort of autism-speak?

Try warming up your body, drinking water and stuff.
>>
>>8544772
Explain more about the algorithm
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>>8544772
>stuck at a local minimum
I'm not sure what's wrong with your head but better that than heading off towards a global minimum

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Do you think it is possible for a human to breed with another non-hominid primate?
35 replies and 3 images submitted. Click here to view.
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fuck you
>>
Eat a fat dick
>>
>>8544707
>>8544711
rude

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is it possible to inject and lock a Laser?
6 replies and 2 images submitted. Click here to view.
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>>8544505
Injection locking is a thing, if that's what you're asking.
>>
>>8544505
Energy loss due to heat
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>>8544505
Mirrors aren't perfect. Current record for number of laser bounces is likr 1000 though for a precisely aligned cavity.

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>>
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>>8538538

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I'm working in a project for college and I really need to transform the following equation to make h the variable, as a function of x. Can anyone do this? I'm having trouble because it's not linear.
h = r1 * sin(x) + r2 * sin(2 * x) + r3 * sin(3 * x) + r4 * sin(4 * x) + r5 * sin(5 * x)
x(h) = ?
9 replies and 2 images submitted. Click here to view.
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it's a periodic function so you'll have to take a restriction to make it injective.
are the r1. r2 etc constants?
>>
x belongs to ]0; pi/2[ and r1, r2, etc. are constants, yes.
>>
Use Euler's formula and write the sine terms as complex exponentials, use law of exponents and make a change of variable. It'll really make you think.

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How deep would you have to dig to go back 100years?

I know it depends on the terrain and soil but in general.

Would 1ft be like 5years?
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No one knows?
>>
Has your yard gotten a foot of dirt in the past 5 years?
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>>8543940
About an inch below the surface. That's how long it takes dirt to be made.

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r u supyeror ly intelgent enoug???


proof it...
8 replies and 1 images submitted. Click here to view.
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maybe write the problem correctly first and I will pretend to do it while the thread dies
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>>8543810
>"quadratic" function
>has degree n
why?
>>
>>8543810
Why is penmanship not a thing that's taught in school anymore? I find it really pathetic when I see someone who is 15 or older have garbage penmanship. You print about as good as a kindergartener.

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Can someone explain why the fundamental theorem of calculus works? I understand how to utilize the theorems, and I understand why one would subtract the function at interval point B from A. My question is why does finding the anti-derivatives give the area under the derivative function?
13 replies and 1 images submitted. Click here to view.
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>>8543772
>>>/g/
brainlet get out
>>
>>8543772
The derivative is the rate of change, the integral is the accumulative effect. If you have an equation for the speed at which an object is moving, taking the integral will give you the total distance covered.

Why does calculus do this? Because that's what is was designed to do.
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>>8543772
Sit tight, I need latex to prove it and explain intuitively why each step works

I'm looking for a good book which explains the fundamental laws of physics in depth. Stuff like conservation of energy and mass, electromagnetism, newton's laws, and even more advanced stuff like einstein's theory of relativity, the Michelson Morley experiment, etc. I'm looking for something that explains the serious science behind it in detail, not books that just mention the experiment, how it was conducted, and the results, I want a deep scientific understanding.
11 replies and 1 images submitted. Click here to view.
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>>8543671
Theoretical Physics by George Joos
University Physics by Young and Freedman

An Introduction to Mechanics by Keppler
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>>8543688
Damn I would buy these all right now if they weren't so expensive. I guess I'll have to settle for pdf formats and read them on my ipad or kindle.
>>
>>8543671
The Road to Reality by Penrose?

Why are most physics books dull and austere ?
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>>8543565
Because your too stupid to see the beauty of the underlying structures.
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>>8543565
Because the authora know (1) there's alot alot of material (2) you're here because you want to learn the material and they can skip the bullshit.
>>
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>>8543565

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Sup /sci/. I'm a Math major going to a 50-80th ranked state university In The United States of America. I'm a junior RN and I'm working with a professor, hopefully getting a paper published before the end of the year(with me as the only co-author). I want to go to a top 30 school for mathematics. What else do I need to do in order to be competitive? I plan on applying for the spring semester so my senior year counts for something. I'm not really a "prodigy", I failed a few math classes in HS; however, I really straightened myself up in college and...
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6 replies and 1 images submitted. Click here to view.
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>>8543397
No you are going to be stuck with your PhD teaching basic calculus in a small town high school
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>>8543480
Aight. Can I at least become the dude off of Stand and Deliver?
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>>8543480
Can't tell if youre serious or not?

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Hmm, why don't you see the frames sliding along on old motion pictures?
14 replies and 1 images submitted. Click here to view.
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>>8543308

Because they switch fast enough so your eye doesn't notice it.
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>>8543308
Shutters.
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>>8543308
https://en.wikipedia.org/wiki/Movie_projector#Shutter

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what do those brackets mean?
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>>8543208
expected value
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>>8543212
thanks
>>
>>8543208
thats a pretty blunt mathematical statement

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How do I get good at induction in 12 hours?
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>>8543118
>CS majors
>>
it's easy if you know the tricks
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>>8543120
lol

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Hey /sci/, I'm broke as shit and I need a good computer algebra system to work with. As many frills as possible. Needs to be programmable if possible. What are your recommendations?
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>>8542865
the one between your ears
>>
pirate mathematica
python has some CAS module iirc
>>
>>8542865
pirate matlab

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https://www.quora.com/Is-CS-easier-than-other-engineering-majors

How will SCI ever recover?
10 replies and 2 images submitted. Click here to view.
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>CS vs engineering
Lol no one cares faggot.
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>>8542794
I'd like to chime in
comp sci bachelors is easy as shit, no joke
the only classes that could cause someone trouble are the calc classes
but all the engineers take them too, and more
>>
As a CPE I take all the "hard" courses during undergrad as mentioned in the post

>os design
>kernel programming
>device drivers

Cs at an undergraduate level isn't really that difficult, and I would argue not particularly valuable on its own.

Cs people in most cases don't take math past calc 2. And they complain that 3D graphics is the hardest class ever because of all the math.

So yes, it's a baby EE degree

Who here into Complexity Theory? Inb4 CS is for brainlets.
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>>8542753
CS is for bra-
>>
>>8542753
YOU CAN'T INB4 THE OP YOU SHITSTAIN! REEEEEEEEEEEEEEEEEEEEEEEEEEEEE
>>
>>8542753
>CS majors claim to know Complexity Theory
>All they know is P and NP
>They don't even know what coNP is

File: integral.png (60 KB, 1020x754) Image search: [iqdb] [SauceNao] [Google]
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Hey /sci/

I need help integrating this and solving for y as a function of x
>pic related

I will post a few more things to explain the physics behind what I'm actually trying to do, but the problem can be boiled down to solving what's on that picture.

Thanks!
13 replies and 4 images submitted. Click here to view.
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>>8542699
just punch it into wolfram
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>>8542705
I did but for some reason the answer that I get won't allow me to plug in values and obtain a real output. I think wolfram assumes that all the variables can be complex and I don't know how to tell it to calm down.

>here it is
https://www.wolframalpha.com/input/?i=(integrate+dy%2F(a%2B(c-a)*(1-exp(by))))%3Dx

I'll post more about the actual problem. Making some figures now.
>>
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OP here,

Ok, here's the explanation of what I'm trying to do (will take a few posts).

I am using 3D seismic data (which are like echos underground) and trying to figure out how deep certain reflectors are.
>pic related

To do this, I need to know the velocities of all the rocks above the reflector I'm interested in.
>more on this in the next post


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