If you have a mathematical approach, the answer's staring at you in the face.
Anyway, makes a change from trying to capture the heavens. This is an echo of the very first Tuesday Challenge macros Helen and I used to have... I'm rather proud of how this came out.
Captured with a Canon 5D mk II and a 100 mm f/2.8 L macro lens, very little post-processing involved.
Congratulate / blame Gkorts for the theme and, as always, thank Helen (Girafferacing) for the logistics.
Other possible participants:
The above links take you to their latest post, not necessarily the Tuesday Inspiration one. Look for the entry dated Tuesday, 27 April.