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Add markdown footnotes to 2005/persano

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Cody Boone Ferguson committed 2023-12-03 11:40:59 -08:00
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@@ -93,7 +93,7 @@ one cycle of the torus and `q` times around the other. `p` and `q` should be
[coprime](https://en.wikipedia.org/wiki/Coprime_integers); otherwise, the [coprime](https://en.wikipedia.org/wiki/Coprime_integers); otherwise, the
resulting curve will _not_ be a knot (that is, imagining the resulting curve as resulting curve will _not_ be a knot (that is, imagining the resulting curve as
a loop of rubber, there will be a way to bend, twist and stretch it, without a loop of rubber, there will be a way to bend, twist and stretch it, without
cutting it [1], until it ends up looking just like a circle embedded in R3 [2]). cutting it [^1], until it ends up looking just like a circle embedded in R3 [^2]).
Sample usage: Sample usage:
@@ -125,7 +125,7 @@ displaying animated GIFs, such as almost any graphical HTTP browser.
Due to code size constraints, full [LZW Due to code size constraints, full [LZW
compression](https://en.wikipedia.org/wiki/LZ77_and_LZ78#LZW) was not compression](https://en.wikipedia.org/wiki/LZ77_and_LZ78#LZW) was not
implemented [3]. In fact, the output images are even somewhat expanded, thanks implemented [^3]. In fact, the output images are even somewhat expanded, thanks
to GIF overhead. to GIF overhead.
The GIF format supports only a limited number of bits per pixel, so the The GIF format supports only a limited number of bits per pixel, so the
@@ -141,7 +141,7 @@ The only major portability issue should be reliance on ASCII.
It should also be mentioned that the program won't work on systems that It should also be mentioned that the program won't work on systems that
distinguish between text and binary streams; however, since hardly distinguish between text and binary streams; however, since hardly
anyone uses such systems in this day and age, this is a minor issue. [4] anyone uses such systems in this day and age, this is a minor issue. [^4]
### EXERCISES FOR THE READER ### EXERCISES FOR THE READER
@@ -157,16 +157,16 @@ smoother by increasing the number of polygons.
### FOOTNOTES ### FOOTNOTES
[1] You can call such a transformation an "ambient isotopy" if you want to [^1]: You can call such a transformation an "ambient isotopy" if you want to
impress people at parties. impress people at parties.
[2] Also known as the "unknot", which sounds slightly less impressive than [^2]: Also known as the "unknot", which sounds slightly less impressive than
"ambient isotopy". "ambient isotopy".
[3] Unfortunately (for the author), the convenient excuse that LZW compression [^3]: Unfortunately (for the author), the convenient excuse that LZW compression
was not implemented in order to avoid the Unisys patent can no longer be used. was not implemented in order to avoid the Unisys patent can no longer be used.
[4] ;) [^4]: ;)
## Copyright and CC BY-SA 4.0 License: ## Copyright and CC BY-SA 4.0 License: