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Topic: Convex function


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In the News (Tue 17 Nov 09)

  
  A4.
The same is true of the integrals of the partial derivatives of the function with respect to x.
is a continuous periodic function of period unity.
The mathematical statement conveyed by this formula is that the function F(x) and its first (n - 1) derivatives vanish at x=0 and the n-th derivative of F(x) is f(x).
kr.cs.ait.ac.th /~radok/math/mat9/04c.htm   (3409 words)

  
  PlanetMath: convex function
is a strictly convex function, or a strictly concave function, respectively.
We may generalize the above definition of a convex function to an that of an extended real-valued function whose domain is not necessarily a convex set.
This is version 22 of convex function, born on 2001-10-15, modified 2006-10-29.
planetmath.org /encyclopedia/ConvexFunction.html   (302 words)

  
 About CONVEX CONVEX - The Connecticut Valley Electric Exchange
CONVEX presently operates as the 2nd largest (in load served) Local Control Center (LCC) in New England, under the umbrella of the New England Regional Transmission Operator known as ISO-NE (Independent System Operator - New England).
As a Transmission Operator, CONVEX’s primary function is to ensure the safe, reliable and economic operation of the CONVEX transmission system, 24 hours a day, 365 days a year, no matter what the conditions.
CONVEX also monitors energy demands on the system and their impact on power quality throughout the CONVEX system, and performs dispatching functions, including the implementation of emergency actions when necessary, to ensure power quality remains within acceptable tolerance at all times.
www.cvx.com /about.asp   (326 words)

  
 Convex Web Programming | Website Design | Web Site Company
Convex optimization is a subfield of mathematical optimization.
A twice differentiable function of one variable is convex on an interval if and only if its second derivative is non-negative there; this gives a practical test for convexity.
More generally, a continuous, twice differentiable function of several variables is convex on a convex set if and only if its Hessian matrix is positive semidefinite on the interior of the convex set.
www.atozsolution.com /convex_web_programming   (194 words)

  
 Solvers that Work with AMPL
MProbe is a tool for analyzing nonlinear functions to discern their shapes in a region of interest.
Shape means whether the function is linear or almost linear, convex or almost convex, concave or almost concave, or concave and convex.
Knowledge of function shape is crucial when developing nonlinear optimization models, or when selecting the nonlinear solver for a nonlinear optimization problem.
www.ampl.com /solvers.html   (648 words)

  
 Journal of Formalized Mathematics, Index of MML Identifiers
The Modification of a Function by a Function and the Iteration of the Composition of a Function.
Definition of Integrability for Partial Functions from $\Bbb R$ to $\Bbb R$ and Integrability for Continuous Functions.
Introduction to Several Concepts of Convexity and Semicontinuity for Function from $\Bbb R$ to $\Bbb R$.
www.mizar.org /JFM/mmlident.html   (2155 words)

  
 Indooor & Outdoor Convex Inspection Security Mirrors
The outdoor convex mirrors have a special weather sealed backing, hanging hardware, and a heavy duty sealed rubber molding.
Available in Round Convex or Flat Acrylic Mirror.
Has a heavy-duty extruded rubber rim to help prevent damaging objects when maneuvering.
www.convexmirrors.us   (223 words)

  
 Jaguar Champion Class, Thordal-Christensen. Aut. Oster Reparatør.
Special features with regard to function and design
Diamond like, non abrasive, dark blue titanium nitrate coating, provides protection against nickel allergies, with excellent durability.
Tedious hair-pushing and recutting are as good as eliminated
www.osterpro.dk /jaguar/Championclass.htm   (202 words)

  
 Watersports NauticFriend The Ultimate Worldwide Water Sports Directory
Stainless steel case and bracelet, Perpetual moon phase display, Date indicator, End-of-battery-life indicator, Convex sapphire glass, 233 parts, Mechanical chronograph driven by quartz-controlled stepping motor, Water-resistant to 30M
Platinum case with platinum bracelet, Chronograph, Black dial, Perpetual calendar, Minute repeater, Perpetual moon phase display, 4-digit year display, Small seconds with stop function, Convex sapphire glass, 659 parts, Mechanical movement, Production limited to 50 watches per year
Stainless steel case and bracelet, Black dial, Self-winding, Date indicator, Convex sapphire glass, Mechanical movement, Water-resistant to 30M
www.nauticfriend.com /buy_online_iwc.html   (273 words)

  
 MathLinks Math Forums :: View topic - Convex function
MathLinks Math Forums :: View topic - Convex function
it follows immediately from the definition of convex functions mentiond above...
Created and Maintained by Valentin Vornicu - (c) AoPS Inc. 2004-2007 - Powered by phpBB
www.mathlinks.ro /Forum/viewtopic.php?t=157255   (209 words)

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