When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The function f may not be given exactly - we might only know its value at a finite number of points in the domain. Consequently the best that can behoped for is to solve the equation to within a given accuracy at minimal cost or complexity.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.