Archived threads in /sci/ - Science & Math - 547. page
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WHY IS STATISTICS SO CONFUSING
i have never felt so stupid in my entire life
>>7724967
Stats is easy senpai
>>7724971
looks like i'm a fucking idiot because i literally can't understand the most basic concepts of probability
it's not confusing it's just taught poorly 99% of the time
how do you represent a vector that starts somewhere other than the origin?
fuck wrong pic
>>7724883
As one that starts at the origin
You should always think of vectors as starting from the origin and just encoding direction and magnitude, it really doesn't matter where their startpoint is
Even like normal vectors to planes or a velocity vector of a particle
A vector doesn't start anywhere.
When you're welding steel and aluminum, how does the heat change the structure of the metal in general, if at all? Is the change permanent? How would the structure change if you quenched it rather than letting it cool slowly? What affects are produced by each?
>>7724846
>look it up
>from a phase diagram
As molten iron cools it crystallizes at 1538 °C into its δ allotrope, which has a body-centered cubic (bcc) crystal structure. As it cools further to 1394 °C, it changes to its γ-iron allotrope, a face-centered cubic (fcc) crystal structure, or austenite. At 912 °C and below, the crystal structure again becomes the bcc α-iron allotrope, or ferrite. Finally, at 770 °C (the Curie point, Tc) iron becomes magnetic....
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>>7724857
I don't care about iron or magnetism, m8
>>7724864
what is steel without iron?
>just carbon
How do I find girls that are (in highschool BTW) into math or that like guys that like it? I'm having trouble finding girls who aren't complete fuccbois.
>>7724769
You need to be over the age of 18 to post here. Stop being such a cringy loser for starters.
>I'm having trouble finding girls who aren't complete fuccbois.
No fucking wonder you feel so lonely. Find the problems in yourself and work on them, stop trying to make people fit your unrealistic ideals or you'll never be happy.
>>7724769
go to math competitions and be white and not a sperglord, all the grills will be over you.
Better yet graduate and enter a maths program.
underage
also, you don't
Is this an accurete description of /sci?
I am too lazy to hate
If you want to make money then what the hell are you doing studying science?
>>7724664
both of them are failures desu senpai
Discrete math is best math
If you can count it it's not maths.
Yes it is.
>>7724487
Discrete math and Norwegian girls. Can life get any better?
>tfw gf is French
Am I wrong? Help me sci fags.
Inb4 handwriting of a child.
>>7724164
define "still"
TL:DR you can't
>>7724172
Not moving.
Exactly what is it that an engineer does? How do they solve problems?
>>7724132
By using computer programs and methodologies that have been developed specifically for the problems you have to solve. Plug-n-chug, make sure the answer makes sense, if it doesn't, figure out what wrong, fix it. Rinse, repeat.
>sound engineer
>>7724132
> Exactly what is it that an engineer does?
Other engineers.
>How do they solve problems?
Well, the recessive engineer who needs to solve a problem trades his anus for the answer of said problem by a dominant engineer. That dominant engineer once was a recessive engineer until it got fucked by another dominant engineer. The story goes that at the origin of this perpetual anal transference of problem solving skills rests a physicist...
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>>7724132
I will never understand why sound technicians insist in calling themselves "engineers".
Also Zuma has done literally nothing wrong, you youths are retarded with your silly activism nonsense.
is a Circle just a polygon with googols of sides?
No. A circle is, by definition, not a polygon because it has no straight sides.
>>7723749
Are you implying a circle is organic?
a circle is a lymit of regular polygons when the numbers of sides goes to infinity
i apologize for my lack of math knowledge, but how come there's countable infinity for natural numbers, uncountable infinity for real numbers, but nothing inbetween? like what type of properties are there for a set that is less countable than natural numbers, but is more countable than reals? is it even possible?
>>7723606
We don't know if its possible. The contiumm hypothesis is still unsolved.
>>7723610
has there been any insight as to what type of criterion is needed for it to even be possible?
>>7723606
Well, it's either countable or it's not. Sure, there are some countable infinities that are larger than others-- For instance, there are countably infinite primes, but obviously the set of all natural numbers is more dense.
reals simply aren't countable.
What have you heard about aliens? Nasa's secrets?
THERE ARE NO ALIENS ON EARTH.
HUMANS ARE THE ONLY SENTIENT LIFEFORMS ON THE EARTH.
HUMANS ARE IN CONTROL.
THERE ARE ONLY HUMANS IN HUMAN GOVERNMENT.
NASA IS TELLING YOU THE TRUTH.
DO NOT WORRY.
>>7723389
>THERE ARE NO ALIENS ON EARTH.
Lies
>HUMANS ARE THE ONLY SENTIENT LIFEFORMS ON THE EARTH.
More lies
>HUMANS ARE IN CONTROL.
PFFFTTT...AHAHHAAHAHAHAH....oh ok if you say so....
>THERE ARE ONLY HUMANS IN HUMAN GOVERNMENT.
...says the based Reptilian....
>NASA IS TELLING YOU THE TRUTH.
Yup....
>DO...
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The best explanation I have seen so far of the necessity of the speed of light is locality, that having no limit to the speed at which objects may influence other objects would essentially render location a meaningless concept, as e.g. photons could transmit force instantly over arbitrarily large distances.
Is this not simply countered by the existence of speed? For locality to exist, force carriers need to propagate at some speed, but MUST this necessarily be the same for all force carriers and an upper limit for all motion? Does this somehow break causality by potentially...
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>>7723363
You seem to be the lost.
The memes are that way --> /s4s/
>>7723373
So you're just an utter moron then, yes? Yes.
>>7723363
There has to be a speed limit for things to make sense unless our understanding of the universe is very very wrong.
Does that speed have to be C? Maybe not but C is what it seems to be.
