
LinkBack  Thread Tools  Display Modes 
Sponsored Links  
Advertisement


07012013, 10:22 PM  #15 (permalink)  
Banned
Join Date: Jun 2013
Posts: 31

wait wait
Quote:
Typically, A is some subset of the Euclidean space Rn, often specified by a set of constraints, equalities or inequalities that the members of A have to satisfy. The domain A of f is called the search space or the choice set, while the elements of A are called candidate solutions or feasible solutions. The function f is called, variously, an objective function, cost function (minimization),[2] indirect utility function (minimization),[3] utility function (maximization), or, in certain fields, energy function, or energy functional. A feasible solution that minimizes (or maximizes, if that is the goal) the objective function is called an optimal solution. By convention, the standard form of an optimization problem is stated in terms of minimization. Generally, unless both the objective function and the feasible region are convex in a minimization problem, there may be several local minima, where a local minimum x* is defined as a point for which there exists some δ > 0 so that for all x such that \\mathbf{x}\mathbf{x}^*\\leq\delta;\, the expression f(\mathbf{x}^*)\leq f(\mathbf{x}) holds; that is to say, on some region around x* all of the function values are greater than or equal to the value at that point. Local maxima are defined similarly. A large number of algorithms proposed for solving nonconvex problems – including the majority of commercially available solvers – are not capable of making a distinction between local optimal solutions and rigorous optimal solutions, and will treat the former as actual solutions to the original problem. The branch of applied mathematics and numerical analysis that is concerned with the development of deterministic algorithms that are capable of guaranteeing convergence in finite time to the actual optimal solution of a nonconvex problem is called global optimization. 

07012013, 10:38 PM  #18 (permalink) 
LIFETIME MEMBER
Join Date: Feb 2010
Location: Vail, CO
Posts: 4,774

I feel sorry for her most days.... Has to live in a beautiful town, hike all summer, snowboard all winter, listen to the river pass by our front door while our son catches trout 15' away..... Poor, poor woman.... Guess 16 years and i still have not run her off though means she likes the torture.

07012013, 11:15 PM  #19 (permalink) 
Veteran Member
Join Date: Aug 2007
Location: Mountains
Posts: 11,520

Man his wives life is rough let me tell you. Vail fucking sucks they should just move to Breck.
__________________
Angry Snowboarder Because someone has to call it how they see it! 
Thread Tools  
Display Modes  

