Last updated on 2021-09-16, Thu, 10:52 AM

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$T=\frac{T_{0}}{\sqrt{1-(\frac{v}{c})^{2}}}$ $i\hbar\frac{\partial}{\partial t}\psi=-\frac{\hbar^2}{2m}\nabla^2\psi+V\psi$ $\begin{eqnarray*} \nabla\cdot\vec{E}&=&\frac{\rho}{\epsilon_0}\\\\ \nabla\cdot\vec{B}&=&0\\\\ \nabla\times\vec{E}&=&-\frac{\partial B}{\partial t}\\\\ \nabla\times\vec{B}&=&\mu_0\left(\vec{J}+\epsilon_0\frac{\partial E}{\partial t}\right)\\\\ \end{eqnarray*}$ $R^*=\underset{RR^t=I,\det(R)=1}{\operatorname{argmin}}\sum_{i=1}^n|RX_i-Y_i\|^2_2,\\$ $\begin{equation} {\bf H} = -{\bf \mu} \cdot {\bf B} = - \gamma B_o {\bf S}_z = -\frac{\gamma B_o\hbar}{2} \begin{bmatrix} 1&0\\0&-1 \end{bmatrix}. \end{equation}$ $\mathbf{V}_1 \times \mathbf{V}_2 = \begin{vmatrix} \mathbf{i} & \mathbf{j} & \mathbf{k} \\ \frac{\partial X}{\partial u} & \frac{\partial Y}{\partial u} & 0 \\ \frac{\partial X}{\partial v} & \frac{\partial Y}{\partial v} & 0 \\ \end{vmatrix} = \begin{bmatrix} 0\\0\\ \frac{\partial X}{\partial u}\frac{\partial Y}{\partial v} - \frac{\partial X}{\partial v} \frac{\partial Y}{\partial u} \end{bmatrix}$

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;

Unordered List

1
2
3
- 3.1
- 3.2
- 3.3

Task List

bug 1
bug 2
bug 3
- bug 3.1
- bug 3.2
- bug 3.3

Ordered List

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

Table

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

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