# Cardinal Sine Surface

The cardinal sine surface is a three-dimensional projection of a cardinal sine function in two dimensions. Drawn on this print is the *unnormalized* function, which was introduced by *Philip M. Woodward* in 1952 Woodward and Davies (1952).

\[% f(n) = \begin{cases} \frac{\sin{\sqrt{x^2 + y^2}}}{\sqrt{x^2 + y^2}} & \quad \text{for } x = y \neq 0\\ 1 & \quad \text{for } x = y = 0\\ \end{cases} \]

### References

Woodward, P.M., and I.L. Davies. 1952. “Information Theory and Inverse Probability in Telecommunication.” *Proceedings of the IEE - Part III: Radio and Communication Engineering* 99 (58): 37–44. doi:10.1049/pi-3.1952.0011.

## Production details

All prints are produced on a inkjet printer on Innova’s IFA-22 paper:

- 315 g/m
^{2} - Soft textured
- 100% cotton
- Natural white
- Acid and lignin free

Prints are currently only available in the DIN A4 format. If you are interested in other formats, please let me know.