/sci/ - Science & Math

[Anonymous No.4648891]

how do i write math on /sci/
any tips?
also test thread for cool things and symbols etc.

[Anonymous No.4648908]

[Anonymous No.4648906]

[Anonymous No.4648932]

Also, it you double click on a formula on someone else post, you will see what he wrote down to display that formula.

<span class="math"> n! \sim \sqrt{2 \pi n} (\frac{n}{e})^n[/spoiler]

[Anonymous No.4648934]

[Anonymous No.4648939]

>that feel when, as a biologist, you will never have a reason to write in latex

[Anonymous No.4648946]

>>4648939
Other than not having to deal with all the bullshit of standard word processors?

[Anonymous No.4648950]

Testing.

<span class="math"> /sum_ {n=1}^{∞} /frac{1}{2^n} = 1[/spoiler]

[Anonymous No.4648952]

>>4648950

Trying to fix...

Testing.

<span class="math"> /sum_ {n=1}^{∞} /frac{1}{2^n} = 1[/spoiler]

[Anonymous No.4648953]

>>4648950
slashes should be in the other direction: \ instead of /

[Anonymous No.4648957]

>>4648952

I'm still stupid...

Testing.

<span class="math"> \sum_ {n=1}^{∞} \frac{1}{2^n} = 1 [/spoiler]

[Anonymous No.4648959]

\sum_{1}^{1000}

[Anonymous No.4648960]

>>4648953

Thanks, that worked.

Lab reports should be easier this semester!

[Anonymous No.4648963]

<span class="math">\sum_{1}^{1000}[/spoiler]
better work now

[Anonymous No.4648971]

<span class="math">\frac{\frac{\frac{1}{2}}{\frac{3}{4}}}{\frac{\frac{5}{6}}{\frac{7}{8}}}[/spoiler]

[Anonymous No.4648976]

<span class="math">\sigma_f = \sqrt{\dfrac{\partial f}{\partial x}^2 \sigma_x^2 + \dfrac{\partial f}{\partial y}^2 \sigma_y^2[/spoiler] c'mon

[Anonymous No.4648979]

Also, consider using [ eqn ] instead of [ math ] if you want to display "bigger" things, like summations (>>4648957)
/integrals/complicated fractions (>>4648971)/etc.

[Anonymous No.4648978]

<span class="math">\sigma_f = \sqrt{\dfrac{\partial f}{\partial x}^2 \sigma_x^2 + \dfrac{\partial f}{\partial y}^2 \sigma_y^2}[/spoiler]

now work

[Anonymous No.4648980]

>>4648979

<span class="math">\sum_ {n=1}^{∞} \frac{1}{2^n} = 1[/spoiler]

<div class="math">\sum_ {n=1}^{∞} \frac{1}{2^n} = 1</div>

Comparing

[Anonymous No.4648981]

WTF is wrong besides missing [math ]

\sigma_f = \sqrt{\dfrac{\partial f}{\partial x}^2 \sigma_x^2 + \dfrac{\partial f}{\partial y}^2 \sigma_y^2}

[Anonymous No.4648984]

>>4648932
<div class="math"> n! \sim \sqrt{2 \pi n} (\frac{n}{e})^n</div>

[Anonymous No.4648988]

no one can touch my <span class="math">mathbf\{swag}[/spoiler]

[Anonymous No.4648989]

<div class="math"> n! \sim \sqrt{2 \pi n} (\left \frac{n}{e} \right)^n</div>

[Anonymous No.4648990]

>>4648981
It's \frac instead of \dfrac

[Anonymous No.4648991]

$\sigma_f = \sqrt{\frac{\partial f}{\partial x}^2 \sigma_x^2 + \dfrac{\partial f}{\partial y}^2 \sigma_y^2}$

[Anonymous No.4648993]

<div class="math"> n! \sim \sqrt{2 \pi n} \left( \frac{n}{e} \right)^n</div>

[Anonymous No.4648994]

>>4648988
what the <span class="math"> \mathbf{hell} [/spoiler] happened

[Anonymous No.4648995]

<div class="math">
\sigma_f = \sqrt{\dfrac{\partial f}{\partial x}^2 \sigma_x^2 + \frac{\partial f}{\partial y}^2 \sigma_y^2}</div>

[Anonymous No.4648998]

>>4648989
\left( instead of (\left

[Anonymous No.4648999]

>>4648990
\dfrac is allowed in LaTeX. Does jsMath not support it?

[Anonymous No.4649002]

<span class="math">\mathbf{bold} normal[/spoiler]

[Anonymous No.4649000]

<div class="math">
\sigma_f = \sqrt{\frac{\partial f}{\partial x}^2 \sigma_x^2 + \frac{\partial f}{\partial y}^2 \sigma_y^2}</div>

[Anonymous No.4649003]

>>4649000
fuck yeah

[Anonymous No.4649004]

>>4648999
I wouldn't be surprised if it didn't, 4chan's implementation of latex lacks support for almost anything.

[Filosofer scientist No.4649007]

Just copy the code from http://www.codecogs.com/latex/eqneditor.php and put in the math tags?

[Anonymous No.4649009]

quit being such <span class="math"> \mathbb{IDIOTS} [/spoiler]

[Anonymous No.4649010]

>>4648999
/sci/ doesn't support matrices either

[Anonymous No.4649013]

>>4649007
this is pretty cool, thanks

[Filosofer scientist No.4649014]

>>4649007
Testing my idea.

<span class="math">a^{2}\cdot b^{2}= c^{2}[/spoiler]

[Anonymous No.4649017]

>>4649010
well see about that.

matrix test:
<div class="math">\begin{array}{cc}1 & 2 \\ 3 & 4\end{array}</div>

[Filosofer scientist No.4649018]

>>4649014
More testing, this time with eqn tags.

<div class="math">x = a_0 + \frac{1}{a_1 + \frac{1}{a_2 + \frac{1}{a_3 + a_4}}}</div>

[Anonymous No.4649028]

[math ]Z_{n+1} = Z_n^2 + c[/math ]
Without spaces in the tags
<span class="math">Z_{n+1} = Z_n^2 + c[/spoiler]

[Anonymous No.4649030]

>>4649017
there's an script available for greasemonkey (or scriptish) I think

[Anonymous No.4649031]

<span class="math">\"o\"a\"u\"A\"O\"U[/spoiler]

[Anonymous No.4649037]

<div class="math">\psi (t)=\hat{\psi}e^{i(\omega t\, \pm\, \theta)},\sum_i \hat{\psi_i} cos(\alpha_i \pm \omega t)</div> testing the tough stuff

[Anonymous No.4649056]

<span class="math">e^{iπ}=-1[/spoiler]

really need to learn how to use latex before university

[Anonymous No.4649054]

<div class="math">\begin{pmatrix}
a_{11} & \cdots & a_{1n}\\
\vdots & \ddots & \vdots\\
a_{m1} & \cdots & a_{mn}
\end{pmatrix}</div>

[Anonymous No.4649067]

<span class="math">\int_e^{x}cos(x)[/spoiler]

[Anonymous No.4649072]

<div class="math">\delta \int -\frac{1}{2\kappa}g^{\mu \nu}R_{\mu \nu }\sqrt{-g}d^4x=0</div>

[Anonymous No.4649081]

<span class="math">\int e^{2x} cos(3x) dx
= \int e^{2x} (cos(3x)+i.sin(3x)) dx = \int e^{2x} e^{3ix} dx = \int e^{(3+2i)x} dx[/spoiler]

[Anonymous No.4649087]

I saw someone use /pm for something, I have no idea.

[Anonymous No.4649094]

>>4649087
It's plus-minus. That is,
<div class="math">
x^{2} = a^{2}
x = \pm a
</div>

[Anonymous No.4649096]

>>4649081
What the fuck did you just fucking say about me, you little bitch? I'll have you know I graduated top of my class in the Navy Seals, and I've been involved in numerous secret raids on Al-Quaeda, and I have over 300 confirmed kills. I am trained in gorilla warfare and I'm the top sniper in the entire US armed forces. You are nothing to me but just another target. I will wipe you the fuck out with precision the likes of which has never been seen before on this Earth, mark my fucking words. You think you can get away with saying that shit to me over the Internet? Think again, fucker. As we speak I am contacting my secret network of spies across the USA and your IP is being traced right now so you better prepare for the storm, maggot. The storm that wipes out the pathetic little thing you call your life. You're fucking dead, kid. I can be anywhere, anytime, and I can kill you in over seven hundred ways, and that's just with my bare hands. Not only am I extensively trained in unarmed combat, but I have access to the entire arsenal of the United States Marine Corps and I will use it to its full extent to wipe your miserable ass off the face of the continent, you little shit. If only you could have known what unholy retribution your little "clever" comment was about to bring down upon you, maybe you would have held your fucking tongue. But you couldn't, you didn't, and now you're paying the price, you goddamn idiot. I will shit fury all over you and you will drown in it. You're fucking dead, kiddo.

[Anonymous No.4649100]

>>4649087
<span class="math">\sqrt{4} = \pm2[/spoiler]

[Anonymous No.4649101]

<span class="math">\left \frac{a}{b} \right[\math][/spoiler]

[Anonymous No.4649103]

>>4649094
Ah, looks like linebreaks don't work.

I meant
<div class="math">x^{2} = a^{2}[\eqn]
<div class="math"> x = \pm a</div>.</div>

[Anonymous No.4649107]

>>4649100
Then what about <span class="math">\pm \sqrt{4}[/spoiler]?

[Anonymous No.4649110]

<span class="math"> \left \frac{1}{3} + \frac{1}{6} \right \cdot \frac{1}{2} = \frac{1}{4} [\math][/spoiler]

[Anonymous No.4649114]

>>4649107
<div class="math"> \pm\sqrt 4 = 2 </div>

[Anonymous No.4649138]

>>4649100
>>4649114
Are you just testing LaTeX or are you actually serious

[Anonymous No.4649143]

>>4649138
<span class="math">\pm yes[/spoiler]