- Joined
- Nov 24, 2012

- Messages
- 2,351

Hello, FMH Community!

The implementation of MathJax we're running now has all of the available extensions being loaded.

\(\displaystyle \bbox[5px,border:2px solid red]{\frac{x}{y}}\)

\(\displaystyle \color{white}\bbox[5px,blue]{\sum_{k=0}^n\left(k^3 \right)=\left(\sum_{k=0}^n\left(k \right) \right)^2}\)

The cancel commands (we previously had this extension, but we thought it would be good to show the variants):

\(\displaystyle \frac{\cancel{a}x}{\cancel{a}}=x\)

\(\displaystyle \frac{\bcancel{a}x}{\bcancel{a}}=x\)

\(\displaystyle \frac{\xcancel{a}x}{\xcancel{a}}=x\)

\(\displaystyle \ce{SO4^2- + Ba^2+ -> BaSO4 v}\)

\(\displaystyle \enclose{circle}[mathcolor="red"]{\color{black}{x}}\)

\(\displaystyle \enclose{circle,box}{x}\)

\(\displaystyle 13\enclose{longdiv}{169}\)

\(\displaystyle \enclose{left}{\frac{x}{y}}\)

\(\displaystyle x\xtwoheadrightarrow y\)

\(\displaystyle x\xtwoheadleftarrow y\)

\(\displaystyle x\xmapsto y\)

\(\displaystyle x\xlongequal y\)

\(\displaystyle x\xtofrom y\)

You can even define your own arrow as follows:

\(\displaystyle \Newextarrow{\xrightharpoonup}{5,10}{0x21C0}\)

and then use it thereafter (in that post):

\(\displaystyle x\xrightharpoonup y\)

This allows you to define information the will pop up when the mouse cursor hovers over your expression.

\(\displaystyle \texttip{\int_a^b f(x)\,dx=F(b)-F(a)}{The Anti-Derivative form of The Fundamental Theorem of Calculus}\)

\(\displaystyle \unicode[.55,0.05]{x22D6}\)

Differentiation:

\d{y}{x}

\(\displaystyle \d{y}{x}\)

Partial differentiation:

\pd{f}{x}

\(\displaystyle \pd{f}{x}\)

Scientific exponentiation:

\E{n}

\(\displaystyle \E{n}\)

Trig. functions:

\csch

\arccsc

\arcsec

\arccot

\sech

\arsinh

\arcosh

\artanh

\arcsch

\arsech

\arcoth

\cis

If you have any questions about these, please feel free to ask.

The implementation of MathJax we're running now has all of the available extensions being loaded.

**Bbox:**
Code:

`[MATH]\bbox[5px,border:2px solid red]{\frac{x}{y}}[/MATH]`

Code:

`[MATH]\color{white}\bbox[5px,blue]{\sum_{k=0}^n\left(k^3 \right)=\left(\sum_{k=0}^n\left(k \right) \right)^2}[/MATH]`

**Moderator Note:**MathJax renders LaTeX at this site. Due to an issue with their service, the example below is currently under construction.\(\displaystyle \color{white}\bbox[5px,blue]{\sum_{k=0}^n\left(k^3 \right)=\left(\sum_{k=0}^n\left(k \right) \right)^2}\)

**Cancel:**The cancel commands (we previously had this extension, but we thought it would be good to show the variants):

Code:

`[MATH]\frac{\cancel{a}x}{\cancel{a}}=x[/MATH]`

Code:

`[MATH]\frac{\bcancel{a}x}{\bcancel{a}}=x[/MATH]`

Code:

`[MATH]\frac{\xcancel{a}x}{\xcancel{a}}=x[/MATH]`

**Chemical equations:**
Code:

`[MATH]\ce{SO4^2- + Ba^2+ -> BaSO4 v}[/MATH]`

**Enclose:**
Code:

`[MATH]\enclose{circle}[mathcolor="red"]{\color{black}{x}}[/MATH]`

Code:

`[MATH]\enclose{circle,box}{x}[/MATH]`

Code:

`[MATH]13\enclose{longdiv}{169}[/MATH]`

Code:

`[MATH]\enclose{left}{\frac{x}{y}}[/MATH]`

**Extpfeil:**
Code:

`[MATH]x\xtwoheadrightarrow y[/MATH]`

Code:

`[MATH]x\xtwoheadleftarrow y[/MATH]`

Code:

`[MATH]x\xmapsto y[/MATH]`

Code:

`[MATH]x\xlongequal y[/MATH]`

Code:

`[MATH]x\xtofrom y[/MATH]`

You can even define your own arrow as follows:

Code:

`[MATH]\Newextarrow{\xrightharpoonup}{5,10}{0x21C0}[/MATH]`

and then use it thereafter (in that post):

Code:

`[MATH]x\xrightharpoonup y[/MATH]`

**Text tip:**This allows you to define information the will pop up when the mouse cursor hovers over your expression.

Code:

`[MATH]\texttip{\int_a^b f(x)\,dx=F(b)-F(a)}{The Anti-Derivative form of The Fundamental Theorem of Calculus}[/MATH]`

**Unicodes:**
Code:

`[MATH]\unicode[.55,0.05]{x22D6}[/MATH]`

**Macros:**Differentiation:

\d{y}{x}

\(\displaystyle \d{y}{x}\)

Partial differentiation:

\pd{f}{x}

\(\displaystyle \pd{f}{x}\)

Scientific exponentiation:

\E{n}

\(\displaystyle \E{n}\)

Trig. functions:

\csch

\arccsc

\arcsec

\arccot

\sech

\arsinh

\arcosh

\artanh

\arcsch

\arsech

\arcoth

\cis

If you have any questions about these, please feel free to ask.

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