in reply to
Where is the Hessian? Eh?I mean, do you think I join a monastary for anything other than the feelof course sack-cloth chaffing me as I go about my daily routines in my habit?
I've never seen a Hessian in the monastery. Although, if someone asked about identifying local maxima of functions with several variables, it's possible that the matrix
∂2f/∂x1∂x1 ... ∂2f/∂x1∂xn
... ... ... ...
∂2f/∂xn∂x1 ... ∂2f/∂xn∂xn
I make decisions, and my brain carries them out
My brain makes the decisions, and I observe them (if I'm lucky)
I make some decisions, and my brain makes others
My spouse makes decisions and I and my brain carry them out
I wrote a program to relieve me and my brain from the burden of decision-making
The black-helicopter people project the decisions into my brain and then I do as ordered
Results (364 votes),