Explain xkcd: It's 'cause you're dumb.
|| This explanation may be incomplete or incorrect: |
Please include the reason why this explanation is incomplete, like this:
If you can address this issue, please edit the page! Thanks.
A Fourier transform is a mathematical function often used in physics and engineering.
- [Cueball talks on phone. Cat with many sharp points looks on.]
- Cueball: Hi, Dr. Elizabeth? Yeah, uh ... I accidentally took the Fourier transform of my cat ...
- Cat: Meow!
- Original comments from Randall: "I like the idea of a graph meowing. Also, that cat has a lot of periodic components."
- This is the twenty-seventh comic originally posted to livejournal. The previous was 25: Barrel - Part 4. The next was 27: Meat Cereals.
add a comment! ⋅ add a topic (use sparingly)! ⋅ refresh comments!
Isn't the cat also imaginary because its Fourier transform isn't symmetric?
I feel like there's another joke in that his cat is "imaginary" or has complex components.
Shdwdrgn (talk) 06:33, 8 October 2014 (UTC)shdwdrgn
Might this also be a Garfield joke? Garfield's veterinarian is named Liz. Although Garfield, being roughly a three-dimensional ovoid, would probably end up with a much different looking Fourier transform than what is depicted here.
--126.96.36.199 21:26, 9 October 2014 (UTC)
I think the transform may be of the movements of various parts of the cat. Cats tend to move their ears and heads a lot, and other parts, less so. What tipped me off is the spike at the tip of the tail. Cats typically twitch the very tip of their tail in a rhythmic fashion. 188.8.131.52 21:52, 2 March 2015 (UTC)
Coincidentially, the Fourier transform of a cat was used in a 2003 paper on the so-called phase problem in protein crystallography (figure 3) to illustrate the relevance of phase and amplitude information. See http://journals.iucr.org/d/issues/2003/11/00/ba5050/index.html