fmtex 0.1.0

Write LaTeX math quickly.

FastMathTeX

A quicker way to input math equations with LaTeX syntax.

Installing

You can install it via PyPI:

python3 -m pip install --upgrade fmtex

How to use

You are given a prompt where you can input a custom syntax, after you are done press [Enter] and the LaTeX output will be shown. Additionally it is copied to your clipboard with a dollar sign before and after.

To exit write 'exit in the prompt.

FastMath syntax

In FastMathTeX all words longer than one character are treated as commands, no checking is done to determine wether they are valid commands.

> hello world a b c
\hello \world a b c

Any text inside double quotes is placed inside a \text{} block.

> "such that"
\text{such that}
> "Also, \" can be escaped"
\text{Also " can be escaped}
> "Special \\ {characters} work too!"
\text{Special \\ \{characters\} work too!}

Any text inside percent signs is treated as raw LaTeX and is left unchanged. %\begin{cases}% becomes \begin{cases} and not \\begin{\cases}

> %\begin{cases}% \begin{cases}
\begin{cases} \\begin{\cases}

A number that immediately follows a letter becomes a subscript.

> a1, a2, a 3
a_1, a_2, a 3

There are shortcuts for many commands:

FastMath	TeX	Mnemonic
NN	{\mathbb N}
ZZ	{\mathbb Z}
QQ	{\mathbb Q}
II	{\mathbb I}
RR	{\mathbb R}
CC	{\mathbb C}
balign	\begin{align}
ealign	\end{align}
bcases	\begin{cases}
ecases	\end{cases}
bmat	\begin{matrix}
emat	\end{matrix}
bsmat	\begin{bmatrix}	Begin square-bracket matrix
esmat	\end{bmatrix}	End square-bracked matrix
bcmat	\begin{Bmatrix}	Begin curly-bracket matrix
ecmat	\end{Bmatrix}	End curly-bracket matrix
bbmat	\begin{vmatrix}	Begin beam matrix
ebmat	\end{vmatrix}	End beam matrix
bdmat	\begin{Vmatrix}	Begin double beam matrix
edmat	\end{Vmatrix}	End double beam matrix
lp	\left(	Left paren
rp	\right)	Right paren
ls	\left[	Left square bracket
rs	\right]	Right square bracket
lc	\left{	Left curly bracket
rc	\right}	Right curly bracket
lb	\left|	Left beam
rb	\right|	Right beam
la	\left\langle	Left angle bracket
ra	\right\langle	Right angle bracket
al	\alpha
bt	\beta
gm	\gamma
dl	\delta
DL	\Delta
impl	\implies
et	&	Latin 'and'
ett	&&
el	\\	End line
perc	\%	Percentage

Custom shortcuts

You can add your own shortcuts with the 'sub command.

> 'sub Rmn \mathbb R^{m \cdot n}
added Rmn -> \mathbb R^{m \cdot n}
> Rmn
\mathbb R^{m \cdot n}

You can also add a file that executes commands on startup. On Windows it is located at %LOCALAPPDATA%/_fmtexrc and on Unix-based systems at $HOME/.fmtexrc.

Example

> "Let" \; RR^n = lc (a1, a2, ldots, a_n) mid a_i in RR, 1 le i le n rc
\text{Let} \; {\mathbb R}^n = \left\{ (a_1, a_2, \ldots, a_n) \mid a_i \in \mathbb R, 1 \le i \le n \right\}

Rendered output:

$$ \text{Let} \; \mathbb R^n = \left\{ (a_1, a_2, \ldots, a_n) \mid a_i \in \mathbb R, 1 \le i \le n \right\} $$