Archived threads in /sci/ - Science & Math - 533. page
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What's it mean when people write:
[eqn] \int_A f(x) dx [/eqn]
Instead of:
[eqn] \int_{a}^{b} f(x) dx [/eqn]
A = [a,b]
A is a set. It can be an interval, but it really can be any measurable set
>>7733761
Thanks, from now on I will write all of my integrals like that.
>mfw economists actually think there is something scientific about what they do
>>7732998
Behavioral econ is pretty scientific. Observe people and things. Take samples. Make an inference. Make model to predict behaviour. About as sciency as you can get really.
>>7733013
is it falsifiable?
>>7733013
>actually believes this
>tfw interested in too many things
>physics, maths, filmmaking, drawing, writing, literature, music playing piano, history, philosophy etc
>tfw dip my hand into all of them and gain a moderate above noob knowledge but not pro in any of them
>tfw changed my degree twice now
>can't stick with something for too long before I get jittery and do something else
>grow a distaste towards something...
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>>7732465
>too long before I get jittery and do something else
aka its too hard. either keep at it or do art history
>>7732467
It's not hard most of the time, I just grow interest in other things, I enjoy too many aspects of life, I can't stick with something for 4 years, it's just too much, you might be right but I just can't stick with something. So little time in the world and I just love too much.
How do I keep at it? I get depressed and unable to function if I stick with one thing for too long.
>>7732468
I do the same thing to be honest. I've even gotten pretty good at a few of them, but I keep getting interested in a lot of new stuff.
>tfw studying EE
>tfw visual learner
i need to understand every concept visually or I'll never be happy
Ok. So?
>>7732003
I fucking hated Voyager.
>>7732003
Why didn't you do ME you retard? Literally why I didn't do EE it's too abstract for me.
I work at a pizza place and was discussing a scenario with my boss, we have 50 toppings for a pizza.
He wanted to know how many different pizzas we could have, including having all 50 on one pizza.
I said you have 50 choices the first time, 49 the next, then 48 until only 1 is left.
Based on this simpler example.
If you have 3 toppings you have 3x2x1 = 6 different pizzas.
Example:
Mushroom Tomatoes Bacon
Mushroom Tomatoes
Mushroom Bacon
Tomatoes Bacon
Bacon
Mushrooms
Tomato
That gives 7 different kinds not...
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>>7734870
This is a simple combination problem because mushroom/tomato is the same as tomato/mushroom. There are [math]C(50, 50)[/math] ways to choose 50 toppings from 50, there are [math]C(50, 49)[/math] ways to choose 49 toppings from 50, etc.
>>7734874
3x2x1 gives 6 different pizzas with 3 topping choices but in reality the answer is 7 because you can have each topping on it's own too.
>>7734885
With three topping choices you can either choose three toppings or choose two toppings or choose one topping. There are [math]C(3,3)[/math] ways to choose three toppings, [math]C(3,2)[/math] ways to choose two toppings, and [math]C(3,1)[/math] ways to choose one topping. That means there are
[eqn]C(3,3) + C(3,2) + C(3,1) = 7[/eqn]
ways to choose toppings.
Your factorial answer [math]3 \times 2 \times 1[/math] is not correct. It's a combination problem.
My penis extremely flaccid right now. It might even be near my physiological maximum flaccidity. Feels good man.
Do humans have a calculable absolute minimum penis volume, at any given time (and relative to one's body as it is at that moment)? Can I figure out if I could be more flaccid?
Cut your dick off to achieve
>maximum flaccidity
>minimum penis volume
>actual contribution to the human race
>>7734233
If I cut off my dick it would become less flaccid though. I want to know if I'm experiencing the maximum flaccidity.
>>7734236
Cutting off your dick would let all of the blood out.
Flaccidity is determined by the amount of blood not in your penis.
Therefore;
Cut off your penis for maximum flaccidity.
Q.E.D.
How can a glass hold water if it's sometimes SURROUNDED by water
>>7734088
How can a glass hold air if it's sometimes surrounded by air?
>>7734092
But it doesn't hold air. It's empty
go away Jaden Smith
Hello /sci/entists,
Long story short I am a Medical Laboratory Technician in the U.S. Army. I've earned my ASCP MLT certification and all. No degree, but about 60 college credits and my certification.
I have about a year and a half on my current enlisted contract and I definitely want to GET OUT.
When I ETS I will be able to earn a (mostly) paid for bachelor's degree with the Post 9/11 G.I. Bill...
The only issue is that I am not quite sure what I should study for both maximum career safety [post-automation, in good and bad economic times,...
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Get your nursing degree. Reenlist as an 03/04 in the medical corps.
Bump twicely.
Bioengineering is useless without a masters OP
I can do Riemann integrals. How do I learn double and triple integrals?
No memes please.
You just change bounds so you can do dx then dy, or whatever order is easiest, then integrate separately usually. Sometimes you'll change to polar or spherical coordinates. This is a generalization though.
>>7733605
You integrate with respect to the product measure.
>>7733609
Is it harder than normal Riemann integration?
This idea keeps flashing up in my head: to resolve the problem of constant lack of funding for science and space exploration: introduce a “Robin Hood”-type of scheme: run a company that feeds off of peoples desire to be lazy and procrastinate. Essentially this is the major reason facebook, instagram, buzzfeed, Netflix, etc. are so successful. Extract money from people through that company and use it to privately contribute to fields of science you deem useful and under-funded. I believe this Robin Hood approach: taking from the morons through their voluntary moronic behavior,...
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Everyone single one should contribute his or her part to the evolution and progress of humanity into the interstellar space and other frontiers of the future. In this sense, we should actually think like a swarm and focus our intellect to tackle problems and expand our borders of knowledge. We face the ’tragedy of the commons’: individuals of society are acting independently in their own interest and often contrary to the best interest of our species because they are depleting government budget money into bullshit programs and not spending enough on science.
Much...
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It's honestly not a bad idea. It sounds exactly the same as how public bitcoin funds would be used in Facebook or Twitter posts. All you would do is click on the address as you would a link. Micro transactions are done without fee, extremely easily to whatever cause is supported by the people using that address with just a multi-key wallet for explicit unanimous consent.
uggh
the amount of fedora in this
I'm hoping there's someone here who's good at stats.
Basically I have the following situation. I have two variables (a, b), both of which I use as predictors of a third variable (c).
I use variables a and b in two separate regression analyses to obtain coefficients that indicate the relationship between variables a and b on the one hand, and variaible c on the other. I find that variable a is negatively linearly related to c. Variable b shows a positive linear relationship with variable c. There are no quadratic relationships between variable a or...
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>>7733142
Is that... Boxxy?
>>7733160
I guess so
>>7733160
She's far too attractive to be Boxxy and only has 300 layers of makeup as opposed to over 9000.
Is it true that my fear of being rejected by girls is 100 % irrational in this age of big cities, and that its a remnant of humans previously living in nomadic tribes where there were barely any girls to ask to mate with (so a few rejections means no passing on your genes)?
>>7731761
no you are just a puss and its probably not irrational
>>7731761
Your fear is 100% justified. In modern slut culture 100% of women are competing for the attention of less than 20% of males (the so called "Chads"). If you're born a non-Chad, the best you can hope for is to get rich and to find a single mom in her 40's with 3 children from 4 fathers who reluctantly settles for a beta provider whom she more or less openly contempts.
>>7731768
> 3 children
> 4 fathers
Biology fail.
> born a Chad
Says the fedorafag that doesn't want to do a thing to improve his life.
Get a fucking job. Learn a musical instrument. Lift. Learn how to talk to women. You aren't born a Chad. You make yourself one.
Or don't. I don't give a fuck.
Stupid questions thread, for the things Google won't give you a good answer for.
What are the causes and implications of wavelengths of light?
I've never really come across one good explanation, all I can figure is that it probably has something to do with certainty of position.
>>7709400
What do you even mean what is the cause of the different wavelengths of light? Wavelength is a property of waves.
>>7709400
>What are the causes and implications of wavelengths of light?
This right here. This shit.
If photons truly are particles, is this particle as a whole the "electromagnetic wave"? Isn't there no actual difference between electric and magnetic fields? Is the flux observed in this what gives the frequency and wavelength?
Is all this shit just explaining that light is its own deal, and not simply observing the fluctuations in the aether?
Seriously, what...
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Is this place a meme? Considering to study there for engineering, but nobody in my area knows what it is. Is it worth OOS tuition?
What determines if a fuel is better for a combustion engine or a diesel engine? What are the properties that need to be examined? Thanks
>>7734781
Probably something that can burn quickly
>>7734785
Wtf does that mean? Auto-ignition? Flash-point? Energy density? Which of them is important in the design of an engine?
Petrol ignites via flame or spark. Where as diesel ignites under pressure. Notice how diesel engines don't have spark plugs or leads?
I'm curious, were any of you or your family put into "gifted" programs when you/they were in school? Do you feel that it's positively or negatively affected you/them in an academic or emotional manner? Was the affected person among the guinea pigs of the curriculum or had it been used for some time?
I'd like to research this further and want to get some responses from people that aren't directly around me.
it was just some bullshit to get out of class occassionally
>>7734276
Okay, did you miss anything important? Was that the extent of the program or was there an entire curriculum for students later?
I was in Enriched Math in Highschool, which was pretty pointless because we had the exact same curriculum and exam as the normal stream, we just went through faster/did moderately more challenging questions. Honestly I thought it was a good thing, helped me adjust to Uni course load easier
