Float is almost never good enough. The loss of precision is horrific. wunder
On Nov 13, 2009, at 9:58 AM, Yonik Seeley wrote: > On Fri, Nov 13, 2009 at 12:52 PM, Grant Ingersoll <gsing...@apache.org> wrote: >> Implementing my first function (distance stuff) and notices that functions >> seem to have a float bent to them. Not even sure what would be involved, >> but there are cases for distance that I could see wanting double precision. >> Thoughts? > > > It's an issue in general. > > But for something like gdist(point_a,point_b), the internal > calculations can be done in double precision and if the result is cast > to a float at the end, it should be good enough for most uses, right? > > -Yonik > http://www.lucidimagination.com >
