Möbius

use the force

Brussels

October 8 2016

don't ab

x(u,v) = (1+\frac{v}{2}\cos \frac{u}{2})\cos u

$x(u,v) = (1+\frac{v}{2}\cos \frac{u}{2})\cos u$

y(u,v) = (1+\frac{v}{2}\cos \frac{u}{2})\sin u

$y(u,v) = (1+\frac{v}{2}\cos \frac{u}{2})\sin u$

z(u,v) = \frac{v}{2}\sin \frac{u}{2}

$z(u,v) = \frac{v}{2}\sin \frac{u}{2}$

a one-sided nonorientable surface obtained by cutting a closed band into a single strip, giving one of the two ends thus produced a half twist, and then reattaching the two ends

"Asknowledge increasesamongst mankind, andtransactions multiply, it becomes more and more desirable toabbreviate and facilitatethe modes of conveyinginformation from one personto another, and from one individual to the many."

William Playfair, 1786

"Everything that can beexpressed in numberscan berepresented by lines."

John Playfair

```
868888609462834719714449648
122286651978794222484779908
939340243123007392183390116
351684124962334339709749742
```

and how to overcome them

And correlation is not causation

Except if you're the New York Times

slides.com/maartenzam/mobius