# this is a test for links, references and footnotes. 

a link to [the example.com website](http://www.example.com "example") 

well, [the example.com website](http://www.example.com) 

testing footnotes[^footnote1]. this is kinda silly.^[another footnote.] 
^superscrips^ are ok, but be careful to keep spaces between the inline
footnotes and the superscripts.^[inline footnotes-- *test*]

[^footnote1]: this is a footnote --.

[see @Lovejoy, pp. 12]

Mister @Lovejoy95, at [-@Lovejoy], cites @Lovejoy [pp. 12-12].

Some printable characters might not be matched (in @Krämer, `ä` caused
issues). @Krámer @Kraßmer @Kràmer

*[PCL]: P C L

[hello][welcome] aaaaaa this with [inline link](http://site.com) gets messed up

[hello][hello]aaaaaa this

[hello] [hello] this is a test.

[hello][]

[hello1]: www.google.com

[hello2]: www.google.com "pandoc"

[hello3]: www.google.com
  "pandoc"
this is no longer part of the reference definition

![test](test.png)

![testimg][]

[testimg]: test.png

What follows are some notes on algorithms I've been reviewing from [Algorithms](http://amzn.com/032157351X) by Robert Sedgewick and Kevin Wayne, [The Algorithm Design Manual](http://amzn.com/1849967202) by Steven S. Skiena, and other sources around the Internet [^mit] [^umd] [^umgd]. I wanted to write some notes on the material so that I could easily look back on it, but mainly so that I could be sure that I understand the material --- since I have to understand it to explain it.

[Convolution](http://en.wikipedia.org/wiki/Convolution) is a mathematical
method of combining two signals to form a third signal. Passing the [Dirac
delta function](http://en.wikipedia.org/wiki/Dirac_delta_function) (unit
impulse) $\delta[n]$ through a linear system results in the impulse response
$h[n]$. The impulse response is simply the signal resulting from passing the
unit impulse (Dirac delta function) through a linear system.

# issue 25 

[[abc]](xxx)

[[abc]][]

[[abc]]: x

# issue 107 (vim-pandoc)

[`]`](http://foo.com) foo

[Why isn't `ListT []`{.haskell} a monad](http://blog.sigfpe.com/2006/11/why-isnt-listt-monad.html)