# Texts

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# Math Block

$$T=\frac{T_{0}}{\sqrt{1-(\frac{v}{c})^{2}}}$$

$$i\hbar\frac{\partial}{\partial t}\psi=-\frac{\hbar^2}{2m}\nabla^2\psi+V\psi$$

$$\begin{eqnarray*} \nabla\cdot\vec{E}&=&\frac{\rho}{\epsilon_0}\\ \nabla\cdot\vec{B}&=&0\\ \nabla\times\vec{E}&=&-\frac{\partial B}{\partial t}\\ \nabla\times\vec{B}&=&\mu_0\left(\vec{J}+\epsilon_0\frac{\partial E}{\partial t}\right)\\ \end{eqnarray*}$$

$$R^*=\underset{RR^t=I,\det(R)=1}{\operatorname{argmin}}\sum_{i=1}^n|RX_i-Y_i|^2_2,\$$

$$\begin{equation} {\bf H} = -{\bf \mu} \cdot {\bf B} = - \gamma B_o {\bf S}_z = -\frac{\gamma B_o\hbar}{2} \begin{bmatrix} 1&0\0&-1 \end{bmatrix}. \end{equation}$$

$$\mathbf{V}_1 \times \mathbf{V}_2 = \begin{vmatrix} \mathbf{i} & \mathbf{j} & \mathbf{k} \ \frac{\partial X}{\partial u} & \frac{\partial Y}{\partial u} & 0 \ \frac{\partial X}{\partial v} & \frac{\partial Y}{\partial v} & 0 \ \end{vmatrix} = \begin{bmatrix} 0\0\ \frac{\partial X}{\partial u}\frac{\partial Y}{\partial v} - \frac{\partial X}{\partial v} \frac{\partial Y}{\partial u} \end{bmatrix}$$

# Code Fence

#!/bin/bash

###### CONFIG
ACCEPTED_HOSTS="/root/.hag_accepted.conf"
BE_VERBOSE=false

if [ "$UID" -ne 0 ] then echo "Superuser rights required" exit 2 fi genApacheConf(){ echo -e "# Host${HOME_DIR}$1/$2 :"
}

echo '"quoted"' | tr -d \" > text.txt
def fib(n):
a, b = 0, 1
while a < n:
print(a, end=' ')
a, b = b, a+b
print()
fib(1000)
#include <iostream>

int main(int argc, char *argv[]) {

/* An annoying "Hello World" example */
for (auto i = 0; i < 0xFFFF; i++)
cout << "Hello, World!" << endl;

char c = '\n';
unordered_map <string, vector<string> > m;
m["key"] = "\\\\"; // this is an error

return -2e3 + 12l;
}

function $initHighlight(block, cls) { try { if (cls.search(/\bno\-highlight\b/) != -1) return process(block, true, 0x0F) +  class="${cls}";
} catch (e) {
/* handle exception */
}
for (var i = 0 / 2; i < classes.length; i++) {
if (checkCondition(classes[i]) === undefined)
console.log('undefined');
}

return (
<div>
<web-component>{block}</web-component>
</div>
)
}

export  \$initHighlight;

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• 3.1
• 3.2
• 3.3

• bug 1
• bug 2
• bug 3
• bug 3.1
• bug 3.2
• bug 3.3

1. sda
2. sdb
3. sdc
1. sdc1
2. sdc2
3. sdc3

table 1 2 3 4
1 0 0 0 0
2 0 0 0 0
3 0 0 0 0

# Quote

We knew the world would not be the same.

A few people laughed, a few people cried. Most people were silent.

I remembered the line from the Hindu scripture, the Bhagavad-Gita;

Vishnu is trying to persuade the Prince that he should do his duty, and to impress him, takes on his multi-armed form and says,

‘Now I am become Death, the destroyer of worlds.’

I suppose we all thought that, one way or another.”

J. Robert Oppenheimer   