equations:
  - id: "1"
    name: "Fraction 1"
    equation: > 
      x=\frac{11+y}{1+2z^2}

  - id: "2"
    name: "Fraction 2"
    equation: > 
      x=\frac{1+y}{1+2z^2}

  - id: "3"
    name: "Fraction 3"
    equation: > 
      x=\frac{1+y}{1+2x^2}

  - id: "4"
    name: "Big fraction"
    equation: > 
      2 = \left( \frac{\left(3-x\right) \times 2}{3-x} \right)

  - id: "5"
    name: "Square"
    equation: > 
      x={-b\pm\sqrt{b^2-4ac} \over 2a}

  - id: "6"
    name: "Integration"
    equation: > 
      \int_\zero^\infty e^{-x^2} dx=\frac{\sqrt{\pi}}{2}

  - id: "7"
    name: "Superscript and subscript"
    equation: > 
      x = 10^{20}_5

  - id: "8"
    name: "Sum"
    equation: > 
      \sum_{n=1}^\infty {1\over n^2} = {\pi^2\over 6}

  - id: "9"
    name: "Lightspeed"
    experimental: yes
    equation: > 
      \lspeed = 299792458{m \over \scnd}

  - id: "10"
    name: "Initial charge"
    equation: > 
      q = 10

  - id: "11"
    name: "Energy"
    equation: > 
      E = x

  - id: "12"
    name: "Meter"
    experimental: yes
    equation: > 
      x = 10m + 20\cm

  - id: "13"
    name: "Misc symbols A"
    experimental: yes
    equation: > 
      a = \epsilonzero + \varepsilon

  - id: "14"
    name: "Misc symbols B"
    equation: > 
      b = \phi + \lambda + \theta + \Phi

  - id: "15"
    name: "Misc symbols C"
    equation: > 
      c = \eta + €

  - id: "16"
    name: "Plancks and Boltzmanns"
    experimental: yes
    equation: > 
      \Plancks \neq \Boltzmanns

  - id: "17"
    name: "Air Mass"
    experimental: yes
    equation: > 
      \AM = x

  - id: "18"
    name: "Radiation"
    experimental: yes
    equation: > 
      \rad = x

  - id: "19"
    name: "Amplifiers"
    experimental: yes
    equation: > 
      1\Mega, 2\nano, 3\Giga, 4\Tera, 3\kilo, 20\micro

  - id: "20"
    name: "Electricity"
    experimental: yes
    equation: > 
      \Watt = \Amp \times \volt

  - id: "21"
    name: "Sine and Cosine"
    equation: > 
      \tan \theta = {\cos \theta \over \sin \theta}

  - id: "22"
    name: "Temrature"
    experimental: yes
    equation: > 
      \Tmpr = 10\Klvn

  - id: "23"
    name: "Current"
    experimental: yes
    equation: > 
      \current = 10\Amp

  - id: "24"
    name: "ER #1"
    experimental: yes
    equation: > 
      \er

  - id: "24.b"
    name: "ER #2"
    experimental: yes
    equation: > 
      \er = x

  - id: "25"
    name: "The J stuff"
    experimental: yes
    equation: > 
      \J_\zero, \J_\ph, \J_\diffe, \J_\sc

  - id: "26"
    name: "Voltage of Open Circuit"
    experimental: yes
    equation: > 
      \V_\oc

  - id: "27"
    name: "Concentation Stuff"
    experimental: yes
    equation: > 
      \NA, \ND, \nii

  - id: "28"
    name: "Deplation Area"
    experimental: yes
    equation: > 
      \Wd = x

  - id: "29"
    name: "Farad"
    experimental: yes
    equation: > 
      \F = {{\scnd^4 \cdot \Amp^2} \over {\kilo\grm \cdot m^2}}

  - id: "30"
    name: "Diffusion Length"
    experimental: yes
    equation: > 
      \Ld = 10m

  - id: "31"
    name: "Electrons Diffusion"
    experimental: yes
    equation: > 
      \D_\ek

  - id: "32"
    name: "Electrons Motion Constant"
    experimental: yes
    equation: > 
      \mue

  - id: "33"
    name: "Hole"
    experimental: yes
    equation: > 
      20\hole

  - id: "34"
    name: "Electrons"
    experimental: yes
    equation: > 
      2 \elctrn

  - id: "35"
    name: "Time"
    experimental: yes
    equation: > 
      1\year = 365.25\day, 1\day = 24\hour

  - id: "36"
    name: "Max Watt"
    experimental: yes
    equation: > 
      \Watt_\max

  - id: "37"
    name: "Fill Factor"
    experimental: yes
    equation: > 
      \FF

  - id: "38"
    name: "Photovoltaic Energy"
    experimental: yes
    equation: > 
      \P_\inn

  - id: "39"
    name: "Limits"
    equation: > 
      e^x=\lim_{n\to\infty} \left( 1+\frac{x}{n} \right)^n

  - id: "40"
    name: "Limits #2"
    equation: > 
      e^x=\lim_{4578545n\to\infty} y

  - id: "41"
    name: "F prime of x"
    equation: > 
      y = f^\prime(x)

  - id: "42"
    name: "F double prime of x"
    equation: > 
      y = f^{\prime\prime}(x)

  - id: "43"
    name: "F triple prime of x"
    equation: > 
      y = f^{\prime\prime\prime}(x)

  - id: "44"
    name: "Matrix"
    equation: > 
      \left[ \begin{array}{rr} 5 & -2 \\ 3 & \zero \end{array} \right]

  - id: "45"
    name: "Matrix #2"
    equation: > 
      \left[ \begin{array}{rr} 1 & 4 \\ 10 & 7 \end{array} \right]

  - id: "46"
    name: "Matrix #3"
    equation: > 
      \left[ \begin{array}{rr} 5 & -2 & 5 \\ 5 && -2 \\ 3 & \zero & 10 \end{array} \right]

  - id: "47"
    name: "Piecewise (Branched) function #1"
    equation: > 
      x = \left\{\begin{array}{l} a + b = 0\\ \varphi a + \psi b = 1\end{array}\right.

  - id: "48"
    name: "Log"
    equation: > 
      \log_b(xy) = \log_b (x) + \log_b (y), \,

  - id: "49"
    name: "Union and Intersection"
    equation: > 
      A \cup B \cap C

  - id: "50"
    name: "Some signs"
    equation: > 
      A \ne B \leq C \not\subset \Delta

  - id: "51"
    name: "More vars"
    equation: > 
      l \neq m

  - id: "52"
    name: "Area and Radius"
    equation: > 
      \Area = \pi\radius^2

  - id: "54"
    name: "Stretchy Arrow"
    equation: > 
      \xrightarrow{\Delta A + \radius^{20}}\ =\ \xrightarrow{B}

  - id: "55"
    name: "Function composition"
    equation: > 
      (g \circ h)(x) = h(g(x))

  - id: "66"
    name: "Piecewise Function #2"
    equation: > 
      f(x) = \left\{\begin{array}{l} \left[ {1 \over 2}x + 2 \right]  \ , 2 \le x \lt 4 \\ { \left| 4x \right| \over x^2-36 } \ , x \ge 4 \end{array}\right.

  - id: "67"
    name: "Piecewise Function #3"
    equation: > 
      f(x) = \left\{ \begin{array}{l} ax^2 - bx \ , x \lt 3 \\ a x^3+6bx-9 \ , x\ge3 \end{array}\right.

  - id: "68"
    name: "Piecewise function #4 (Arabic)"
    equation: > 
      x = \left\{\begin{array}{l} abc + 10 \\ xyz + 20 \end{array}\right.

  - id: "70"
    name: "Polynomial"
    equation: > 
      f(x) = ax^3+6bx-9

  - id: "71"
    name: "Array (Table)"
    equation: > 
      q(x) = \begin{array}{l} 1y & {z \over a - 2} \\ be^3  & {c \over g - 4} \end{array}

  - id: "72"
    name: "Bare bones array"
    equation: > 
      \begin{array}{l} 5 \\ h^6 \end{array}

  - id: "73"
    name: "Cases (Piecewise) Environment"
    equation: > 
      |x| = \begin{cases} x  & \transt{\text{ if }}{ إذا } x \ge 0 \\ -x & \transt{\text{ if }}{ إذا } x \lt 0 \end{cases}

  - id: "74"
    name: "Parenthesis Matrix"
    equation: > 
      \begin{pmatrix} aaa & b\cr c   & ddd \end{pmatrix}

  - id: "78"
    name: "More Math Functions"
    equation: > 
      \cot x , \sec y , \csc z 

  - id: "79"
    name: "Single Square Root"
    equation: > 
      \sqrt{2}

  - id: "80"
    name: "Semi colon"
    equation: > 
      x=y; y=0

  - id: "81"
    name: "Single right arrow"
    equation: > 
      a \rightarrow b

  - id: "82"
    name: "Factorial"
    equation: > 
      n!

  - id: "83"
    name: "Cube Root"
    equation: > 
      \sqrt[3]{2}

  - id: "84"
    name: "Upper case XYZ"
    equation: > 
      f(x) = (X \times Y \times Z) \, \transt{\text{or}}{أو} \, (XYZ)

  - id: "85"
    name: "Partially Arabic (It should display: س=١ x=1)"
    note: " (It's OK to break, check the code Comments)"
    # Ref: https://github.com/mathjax/MathJax-third-party-extensions/pull/20#discussion_r63028905
    hide_arabic: True
    equation: >
      \alwaysar{x=1} \, x=1

  - id: "86"
    name: "Charge Character"
    note: "Renders the special-sheen character in Arabic"
    equation: >
      \charge = 1

  - id: "87"
    name: Colored equations
    note:
    equation: >
      \textcolor{blue}{3}a^\textcolor{coral}{2}-\textcolor{blue}{5}b^\textcolor{coral}{\frac{1}{2}\cdot3}.

  - id: "88"
    name: Derivative
    note:
    equation: >
      \displaystyle\int \dfrac{e^x}{1+e^{2x}}\,dx.

  - id: "89"
    name: Array
    note:
    equation: >
      \begin{array}{rrrrr}3x&{}+2y&{}+z&\\-4x&+y&&-7\\\hline -x&+3y&+z&-7\end{array}

  - id: "90"
    name: Aligned part no. 1
    note:
    equation: >
      A = \begin{bmatrix}a_{11} & a_{12} & \dots \\\vdots & \ddots & \\a_{K1} && a_{KK}\end{bmatrix}

  - id: "91"
    name: Alignment part no. 2
    note:
    equation: >
      \left(\smash{\underbrace{\left[\begin{array}{ccc}a&b&c\\d&e&f\\g&h&i\end{array}\right]}_{A}}\left[\begin{array}{c}x_1\\x_2\\x_3\end{array}\right]\right)\\\\\\\\

  - id: "92"
    name: Strikethroughs using the \enclose extension (and limits)
    note:
    equation: >
      \require{enclose}\small\begin{align}\lim\limits_{x \to 5} \frac{x-5}{x^2-25}&=\lim\limits_{x \to 5} \frac{x-5}{(x-5)(x+5)}\\\\&=\lim\limits_{x \to 5} \frac{\enclose{horizontalstrike}{x-5}}{\enclose{horizontalstrike}{(x-5)}(x+5)}\\\\&=\lim\limits_{x \to 5} \frac{1}{x+5}\\\\&=\frac{1}{5+5}=\frac{1}{10}\end{align}
  
  - id: "93"
    name: Small
    note:
    equation: >
      \small\dfrac{df}{dt}=\lim\limits_{h\to0}\dfrac{f(t+h)-f(t)}{h}

  - id: "94"
    name: Scriptsize
    note:
    equation: >
      \scriptsize\dfrac{df}{dt}=\lim\limits_{h\to0}\dfrac{f(t+h)-f(t)}{h}

  - id: "95"
    name: Tiny
    note:
    equation: >
      \tiny\dfrac{df}{dt}=\lim\limits_{h\to0}\dfrac{f(t+h)-f(t)}{h}

  - id: "96"
    name: Lots of symbols
    note:
    equation: >
      \begin{align}\sum_{k=1}^xf(k)={}&C+\int_0^xf(t)\,dt+\frac{1}{2}f(x)\\&+\sum_{k=1}^\infty\frac{B_{2k}}{(2k)!}f^{(2k-1)}(x)\end{align}

  - id: "97"
    name: MathBB no. 1
    note:
    equation: >
      \mathbb{N}_0=\{x\mid x\in\mathbb{Z},x\ge0\}

  - id: "98"
    name: MathBB no. 2
    note:
    equation: >
      \mathbb{N}^*=\{x\mid x\in\mathbb{Z},x>0\}

  - id: "99"
    name: Yet another Piecwise
    note:
    equation: >
      f(x)=\begin{cases}0&x<0\\\frac{100-x}{100}&0\leq x\leq100\\0&100< x\end{cases}

  - id: "100"
    name: Custom Text and Coloring
    note:
    equation: >
      \textcolor{blue}{\transt{\text{rational number}}{رقم منطقي}=\frac{\transt{\text{integer}}{عدد صحيح}}{\transt{\text{integer}}{عدد صحيح}}}

  - id: "102"
    name: "Step by step solving with large numbers"
    note:
    equation: >
      \begin{align}\textcolor{coral}{2}\times\textcolor{coral}{3}&=
      \textcolor{blue}{\transn{1,000,000.532}x}\\\textcolor{coral}{1}
      \times\textcolor{coral}{7}&=\textcolor{blue}{\transn{7,658}y}\\
      \textcolor{coral}{3}\times\textcolor{coral}{4}\times
      \textcolor{coral}{5}&=\textcolor{blue}{60}\end{align}

  - id: "103"
    name: "Mixed Fractions"
    note:
    equation: >
      \tmfrac{20}{1}{2}

  - id: "104"
    name: "Mixed Fractions with Symbols"
    note:
    equation: >
      \tmfrac{x}{y}{z}