Kwant
26-03-2011, 05:47 PM
Today I received some bearer wire, which although I knew was sterling is a little stiffer than I imagined. So it is not exactly easy to wrap around the stone to get a rough idea of the amount needed. My math skills are lacking to say the least and have no idea how to calculate the circumference of ovals, round I can just about cope with.
Well I googled to see if there was some easy formula and came across this utility which seems to answer my problems http://www.csgnetwork.com/circumellipse.html, it says it is approximate but as it works to umpteen decimal points it seems pretty accurate to me. I used a digital caliper to measure my stone and input the figures and there was the answer.
I just thought some of you who are mathematically challenged like me might appreciate knowing it is there.
Well I googled to see if there was some easy formula and came across this utility which seems to answer my problems http://www.csgnetwork.com/circumellipse.html, it says it is approximate but as it works to umpteen decimal points it seems pretty accurate to me. I used a digital caliper to measure my stone and input the figures and there was the answer.
I just thought some of you who are mathematically challenged like me might appreciate knowing it is there.