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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2034:_Equations&amp;diff=161310</id>
		<title>2034: Equations</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2034:_Equations&amp;diff=161310"/>
				<updated>2018-08-17T06:39:00Z</updated>
		
		<summary type="html">&lt;p&gt;Traveling salesman: /* Explanation */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2034&lt;br /&gt;
| date      = August 17, 2018&lt;br /&gt;
| title     = Equations&lt;br /&gt;
| image     = equations.png&lt;br /&gt;
| titletext = All electromagnetic equations: The same as all fluid dynamics equations, but with the 8 and 23 replaced with the permittivity and permeability of free space, respectively.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a BOT - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
!style=&amp;quot;width:20%&amp;quot;|Equation&lt;br /&gt;
!style=&amp;quot;width:20%&amp;quot;|Field&lt;br /&gt;
!style=&amp;quot;width:60%&amp;quot;|Explanation&lt;br /&gt;
|-&lt;br /&gt;
|&amp;lt;math&amp;gt;E = K_0t + \frac{1}{2}\rho vt^2&amp;lt;/math&amp;gt;&lt;br /&gt;
|ALL KINEMATICS EQUATIONS&lt;br /&gt;
|Energy equals a constant K_0 multiplied by time plus half of density multiplied by speed multiplied by time squared&lt;br /&gt;
|-&lt;br /&gt;
|&amp;lt;math&amp;gt;K_n = \sum_{i=0}^{\infty}\sum_{\pi=0}^{\infty}(n-\pi)(i-e^{\pi-\infty})&amp;lt;/math&amp;gt;&lt;br /&gt;
|ALL NUMBER THEORY EQUATIONS&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|&amp;lt;math&amp;gt;\frac{\partial}{\partial t}\nabla\cdot p = \frac{8}{23}&lt;br /&gt;
\int\!\!\!\!\int\!\!\!\!\!\!\!\!\!\!\!\!\!\!\;\;\;\bigcirc\,\,&lt;br /&gt;
\rho\,ds\,dt\cdot \rho\frac{\partial}{\partial\nabla}&lt;br /&gt;
&amp;lt;/math&amp;gt;&lt;br /&gt;
|ALL FLUID DYNAMIC EQUATIONS&lt;br /&gt;
|-&lt;br /&gt;
|&amp;lt;math&amp;gt;|\psi_{x,y}\rangle = A(\psi) A(|x\rangle \otimes |y\rangle)&amp;lt;/math&amp;gt;&lt;br /&gt;
|ALL QUANTUM MECHANIC EQUATIONS&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|&amp;lt;math&amp;gt;\mathrm{CH}_4 + \mathrm{OH} + \mathrm{HEAT} \rightarrow \mathrm{H}_2\mathrm{O} + \mathrm{CH}_2 + \mathrm{H}_2 \mathrm{EAT}&amp;lt;/math&amp;gt;&lt;br /&gt;
|ALL CHEMISTRY EQUATIONS&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|&amp;lt;math&amp;gt;SU(2)U(1) \times SU\left(U(2)\right)&amp;lt;/math&amp;gt;&lt;br /&gt;
|ALL QUANTUM GRAVITY EQUATIONS&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|&amp;lt;math&amp;gt;S_g = \frac{-1}{2\bar{\epsilon}}i\eth \hat{\big(} \zeta_0 \dotplus p_\epsilon \rho_v^{abc}\cdot \eta_0 \hat{\big)} f_a^0 a\lambda(\xi) \psi(0_a)&amp;lt;/math&amp;gt;&amp;lt;br&amp;gt;&lt;br /&gt;
|ALL GAUGE THEORY EQUATIONS&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|&amp;lt;math&amp;gt;H(t) + \Omega + G \cdot \Lambda \, \dots \begin{cases} \dots &amp;gt; 0 &amp;amp; \text{(HUBBLE MODEL)} \\ \dots = 0 &amp;amp; \text{(FLAT SPHERE MODEL)} \\ \dots &amp;lt; 0  &amp;amp; \text{(BRIGHT DARK MATTER MODEL)} \end{cases}&lt;br /&gt;
&amp;lt;/math&amp;gt;&lt;br /&gt;
|ALL COSMOLOGY EQUATIONS&lt;br /&gt;
|&lt;br /&gt;
|-&lt;br /&gt;
|&amp;lt;math&amp;gt;\hat H - \mu_{0} = 0&amp;lt;/math&amp;gt;&lt;br /&gt;
|ALL TRULY DEEP PHYSICS EQUATIONS&lt;br /&gt;
|&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
[TODO: Avoid using math markup here because the images of these equations isn't helpful in a transcript. Sigh.]&lt;br /&gt;
[Nine equations are listed and labeled as followed:]&lt;br /&gt;
&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;br /&gt;
E = K&amp;lt;sub&amp;gt;0&amp;lt;/sub&amp;gt;t + 1/2 pvt&amp;lt;sup&amp;gt;2&amp;lt;/sup&amp;gt;&amp;lt;br&amp;gt;&lt;br /&gt;
ALL KINEMATICS EQUATIONS&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;lt;math&amp;gt;K_n = \sum_{i=0}^{\infty}\sum_{\pi=0}^{\infty}(n-\pi)(i-e^{\pi-\infty})&amp;lt;/math&amp;gt;&amp;lt;br&amp;gt;&lt;br /&gt;
ALL NUMBER THEORY EQUATIONS&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;lt;math&amp;gt;\frac{\partial}{\partial t}\triangledown\cdot p = \frac{8}{23}&lt;br /&gt;
\int\!\!\!\!\int\!\!\!\!\!\!\!\!\!\!\!\!\!\!\;\;\;\bigcirc\,\,&lt;br /&gt;
\rho\,ds\,dt\cdot \rho\frac{\partial}{\partial\triangledown}&lt;br /&gt;
&amp;lt;/math&amp;gt;&amp;lt;br&amp;gt;&lt;br /&gt;
ALL FLUID DYNAMIC EQUATIONS&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;lt;math&amp;gt;|\psi_{x,y}\rangle = A(\psi) A(|x\rangle \otimes |y\rangle)&amp;lt;/math&amp;gt;&amp;lt;br&amp;gt;&lt;br /&gt;
ALL QUANTUM MECHANIC EQUATIONS&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;lt;br&amp;gt;&lt;br /&gt;
CH&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt; + OH + HEAT &amp;amp;rarr; H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O + CH&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt; + EAT &amp;lt;br&amp;gt;&lt;br /&gt;
ALL CHEMISTRY EQUATIONS&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;lt;br&amp;gt;&lt;br /&gt;
SU(2)U(1) &amp;amp;times; SU(U(2)) &amp;lt;br&amp;gt;&lt;br /&gt;
ALL QUANTUM GRAVITY EQUATIONS&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;lt;math&amp;gt;S_g = \frac{-1}{2\epsilon}i\eth \hat{\big(} \zeta_0 \dotplus p_\epsilon \rho_v^{abc}\cdot \eta_0 \hat{\big)} f_a^0 a\lambda(\zeta) \psi(0_a)&amp;lt;/math&amp;gt;&amp;lt;br&amp;gt;&lt;br /&gt;
ALL GAUGE THEORY EQUATIONS&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;lt;math&amp;gt;H(t) + \Omega + G \cdot \land \, ... \begin{cases} ... &amp;gt; 0 &amp;amp; \text{(HUBBLE MODEL)} \\ ... = 0 &amp;amp; \text{(FLAT SPHERE MODEL)} \\ ... &amp;lt; 0  &amp;amp; \text{(BRIGHT DARK MATTER MODEL)} \end{cases}&lt;br /&gt;
&amp;lt;/math&amp;gt;&amp;lt;br&amp;gt;&lt;br /&gt;
ALL COSMOLOGY EQUATIONS&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;lt;math&amp;gt;\hat H - \mu_{0} = 0&amp;lt;/math&amp;gt;&amp;lt;br&amp;gt;&lt;br /&gt;
ALL TRULY DEEP PHYSICS EQUATIONS&lt;br /&gt;
&amp;lt;br&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
[[Category:Math]]&lt;/div&gt;</summary>
		<author><name>Traveling salesman</name></author>	</entry>

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