NonlinearConstraint, hess(x,v)

[Yanyu000]

I don't understand it very well why there is "v" in hess(x,v) which is the hessian matrix of the constraint functions. For me, it's just a function about "x". Could you tell me how to derive that? Based on the example you provide.

[antonior92]

I think it is beacause the constraint is a multidimensional function from Rn to Rm. So we first take the dot product with v and then compute the hessian