 # David

University of New South Wales, Australia

http://web.science.unsw.edu.au/~angell/

My icon is the graph of the exponential sum $$\sum_{n=1}^{10620} e^{2\pi if(n)}$$ for $$f(n)=\frac{n}{20}+\frac{n^2}{9}+\frac{n^3}{59}\ ,$$ where the "graph" of an exponential sum means the sequence of partial sums, plotted in the complex plane, with successive points joined by straight line segments.

Top Questions
15 votes

## Is this a new kind of liar puzzle?

asked Aug 26 '14 at 6:00

14 votes

13 votes

## EPIC sets in group theory

asked Jan 19 '18 at 0:40

10 votes

## Рукописи не горят

asked Apr 27 '15 at 1:37

7 votes

## Illustration on the “Earthsea Quartet” cover

asked Sep 8 '14 at 7:26

7 votes

## Can we save the word “unique”?

asked Aug 20 at 7:16

7 votes

## Minimising a sum of roots of unity

asked Aug 11 '14 at 4:43

6 votes

## Dividing a disc into equal parts

asked Oct 20 '14 at 0:03

6 votes

## How to *really* solve a non-homogeneous recurrence

asked May 23 '14 at 4:47