VimGolfLaTeX to XML Math Delimiters
Vim is amazing when used to edit MediaWiki text, but typing "<math> . . . </math>" can be tiresome and frustrating if formulas are used often. LaTeX delimiters are so concise and even come in two flavors: "\( . . . \)" for inline math and "\[ . . . \]" for centered formulas. The goal is to perform the following conversions: "\( . . . \)" becomes "<math>. . .</math>" "\[ . . . \]" becomes "<center><math>. . .</math></center>"
Start file
Given two vectors \(\vec{x}\) and \(\vec{y}\) in \( \mathbb{R}^n \),
their '''dot product''' or '''inner product''' is defined as the following:
\[ \sum_{i=0}^{n} x_i \, y_i \]
----
Integration by parts is another way of writing the product rule of differentiation.
For two functions \(f(x)\) and \(g(x)\), the following are equivalent:
\[ \begin{align}
\frac{\mathrm{d}}{\mathrm{d}x} \left( f(x) \, g(x) \right) &= f'(x) \, g(x) + f(x) \, g'(x) \\
\int f(x) \, g'(x) \, \mathrm{d}x &= f(x) \, g(x) - \int f'(x) \, g(x) \, \mathrm{d}x
\end{align} \]
----
Matrix multiplication is not commutative
\(
\begin{align}
\begin{bmatrix}
a_{11} & a_{12} \\
a_{21} & a_{22}
\end{bmatrix} \,
\begin{bmatrix}
b_{11} & b_{12} \\
b_{21} & b_{22}
\end{bmatrix} &\ne
\begin{bmatrix}
b_{11} & b_{12} \\
b_{21} & b_{22}
\end{bmatrix} \,
\begin{bmatrix}
a_{11} & a_{12} \\
a_{21} & a_{22}
\end{bmatrix} \\
\begin{bmatrix}
a_{11} \, b_{11} + a_{12} \, b_{21} & a_{11} \, b_{12} + a_{12} \, b_{22} \\
a_{21} \, b_{11} + a_{22} \, b_{21} & a_{21} \, b_{12} + a_{22} \, b_{22}
\end{bmatrix} &\ne
\begin{bmatrix}
a_{11} \, b_{11} + a_{21} \, b_{12} & a_{12} \, b_{11} + a_{22} \, b_{12} \\
a_{11} \, b_{21} + a_{21} \, b_{22} & a_{12} \, b_{21} + a_{22} \, b_{22}
\end{bmatrix}
\begin{align}
\)
''Quod erat demonstrandum''.
End file
Given two vectors <math>\vec{x}</math> and <math>\vec{y}</math> in <math>\mathbb{R}^n</math>,
their '''dot product''' or '''inner product''' is defined as the following:
<center><math>\sum_{i=0}^{n} x_i \, y_i</math></center>
----
Integration by parts is another way of writing the product rule of differentiation.
For two functions <math>f(x)</math> and <math>g(x)</math>, the following are equivalent:
<center><math>\begin{align}
\frac{\mathrm{d}}{\mathrm{d}x} \left( f(x) \, g(x) \right) &= f'(x) \, g(x) + f(x) \, g'(x) \\
\int f(x) \, g'(x) \, \mathrm{d}x &= f(x) \, g(x) - \int f'(x) \, g(x) \, \mathrm{d}x
\end{align}</math></center>
----
Matrix multiplication is not commutative
<math>
\begin{align}
\begin{bmatrix}
a_{11} & a_{12} \\
a_{21} & a_{22}
\end{bmatrix} \,
\begin{bmatrix}
b_{11} & b_{12} \\
b_{21} & b_{22}
\end{bmatrix} &\ne
\begin{bmatrix}
b_{11} & b_{12} \\
b_{21} & b_{22}
\end{bmatrix} \,
\begin{bmatrix}
a_{11} & a_{12} \\
a_{21} & a_{22}
\end{bmatrix} \\
\begin{bmatrix}
a_{11} \, b_{11} + a_{12} \, b_{21} & a_{11} \, b_{12} + a_{12} \, b_{22} \\
a_{21} \, b_{11} + a_{22} \, b_{21} & a_{21} \, b_{12} + a_{22} \, b_{22}
\end{bmatrix} &\ne
\begin{bmatrix}
a_{11} \, b_{11} + a_{21} \, b_{12} & a_{12} \, b_{11} + a_{22} \, b_{12} \\
a_{11} \, b_{21} + a_{21} \, b_{22} & a_{12} \, b_{21} + a_{22} \, b_{22}
\end{bmatrix}
\begin{align}
</math>
''Quod erat demonstrandum''.
View Diff
1c1
< Given two vectors \(\vec{x}\) and \(\vec{y}\) in \( \mathbb{R}^n \),
---
> Given two vectors <math>\vec{x}</math> and <math>\vec{y}</math> in <math>\mathbb{R}^n</math>,
4c4
< \[ \sum_{i=0}^{n} x_i \, y_i \]
---
> <center><math>\sum_{i=0}^{n} x_i \, y_i</math></center>
9c9
< For two functions \(f(x)\) and \(g(x)\), the following are equivalent:
---
> For two functions <math>f(x)</math> and <math>g(x)</math>, the following are equivalent:
11c11
< \[ \begin{align}
---
> <center><math>\begin{align}
14c14
< \end{align} \]
---
> \end{align}</math></center>
20c20
< \(
---
> <math>
48c48
< \)
---
> </math>
Solutions
The best way to learn is to practice. Below, you will find some of the solutions other golfers have entered. To unlock higher ranked solutions, submit your own entry which does as well or better than the solutions you can currently see - climb the ladder!
Check out these helpful resources to improve your Vim skills... Game on.
Unlock 19 remaining solutions by signing in and submitting your own entry
#20 David Wales / @selawdivad - Score: 144 - 02/04/13 @ 05:41
:%s/\\(/<math>/g<CR>:%s/\\)/<\/math>/g<CR>:%s/\\\[/<e<BS>center><math>/g<CR>:%s/\\\]/<\/math><\/center>/g<CR>:%s/<math> /<math>/g<CR>:%s/ <\/math>/<\/math>/g<CR>:wq<CR>
0 comments
