# 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/m2
• 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.

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