2012-11-12, 07:01 PM
Marksman Bryan Wrote:if D < 0 and fxx(a,b) > 0; f(a,b) is a local minimum
if D > 0 and fxx(a,b) < 0; f(a,b) is a local maximum
if D = 0 then test fails (saddle point I believe)
Fixed for ya

Or even more simply, just plug the numbers in

