From the Wired Blog:
A blue jeans company called The Proportion of Blu is using the “Divine Proportion” formula, also known as the “Golden Ratio,” to make your butt look its best. Algebraically, it goes like this:
The formula has been used historically to align parts and proportions in building design, sculptures and paintings, and now — your derrière. I kind of wonder, though, if this can really work since those of us who are not 6′ models will need to hem the $220 jeans.