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2008

CVXMOD – Convex optimization software in Python

by ogrisel
CVXMOD is a Python-based tool for expressing and solving convex optimization problems. It uses CVXOPT as its solver. It is developed by Jacob Mattingley, as PhD work under Stephen Boyd at Stanford University. CVXMOD is primarily a modeling layer for CVXOPT. While it is possible to use CVXOPT directly, CVXMOD makes it faster and easier to build and solve problems. Advanced users who want to see or manipulate how their problems are being solved should consider using CVXOPT directly. Additional features are being added to CVXMOD beyond just modeling. These are currently experimental. CVXMOD has a similar design philosophy to CVX, a convex optimization modeling language for Matlab®, and uses the principles of disciplined convex programming, as developed by Michael Grant, Stephen Boyd and Yinyu Ye.

2007

CVXOPT: A Python Package for Convex Optimization — CVXOPT

by ogrisel
CVXOPT is a free software package for convex optimization based on the Python programming language. It can be used with the interactive Python interpreter, on the command line by executing Python scripts, or integrated in other software via Python extension modules. Its main purpose is to make the development of software for convex optimization applications straightforward by building on Python's extensive standard library and on the strengths of Python as a high-level programming language.

Convex Optimization / Boyd and Vandenberghe

by ogrisel (via)
This book is about convex optimization, a special class of mathematical optimization problems, which includes least-squares and linear programming problems. It is well known that least-squares and linear programming problems have a fairly complete theory, arise in a variety of applications, and can be solved numerically very efficiently. The basic point of this book is that the same can be said for the larger class of convex optimization problems. While the mathematics of convex optimization has been studied for about a century, several related recent developments have stimulated new interest in the topic. The first is the recognition that interior-point methods, developed in the 1980s to solve linear programming problems, can be used to solve convex optimization problems as well. These new methods allow us to solve certain new classes of convex optimization problems, such as semidefinite programs and second-order cone programs, almost as easily as linear programs. The second development is the discovery that convex optimization problems (beyond least-squares and linear programs) are more prevalent in practice than was previously thought. Since 1990 many applications have been discovered in areas such as automatic control systems, estimation and signal processing, communications and networks, electronic circuit design, data analysis and modeling, statistics, and finance. Convex optimization has also found wide application in combinatorial optimization and global optimization, where it is used to fond bounds on the optimal value, as well as approximate solutions. We believe that many other applications of convex optimization are still waiting to be discovered. There are great advantages to recognizing or formulating a problem as a convex optimization problem. The most basic advantage is that the problem can then be solved, very reliably and efficiently, using interior-point methods or other special methods for convex optimization. These solution methods are reliable enough to be embedded in a computer-aided design or analysis tool, or even a real-time reactive or automatic control system. There are also theoretical or conceptual advantages of formulating a problem as a convex optimization problem. The associated dual problem, for example, often has an interesting interpretation in terms of the original problem, and sometimes leads to an efficient or distributed method for solving it. We think that convex optimization is an important enough topic that everyone who uses computational mathematics should know at least a little bit about it. In our opinion, convex optimization is a natural next topic after advanced linear algebra (topics like least-squares, singular values), and linear programming.

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2006

Tuturials in cg by scott schaefer

by MaGo
Image Deformation Using Moving Least Squares Mean Value Coordinates for Closed Triangular Meshes A Geometric Construction of Coordinates for Convex Polyhedra using Polar Duals Subdivision Schemes and Attractors Dual Marching Cubes: Primal Contouring of Dual Grids Lofting Curve Networks using Subdivision Surfaces Smooth Subdivision of Tetrahedral Meshes Adaptive Vertex Clustering Using Octrees On C^2 Triangle/Quad Subdivision Barycentric Coordinates for Convex Sets Smooth Geometry Images A Factored Approach to Subdivision Surfaces Teaching Computer Game Design and Construction Turtle Geometry in Computer Graphics and Computer Aided Design Recursive Turtle Programs and Iterated Affine Transformations Dual Contouring: "The Secret Sauce" Dual Contouring of Hermite Data Convex Contouring of Volumetric Data A Factored Interpolatory Subdivision Scheme for Surfaces of Revolution A Factored Interpolatory Subdivision Scheme for Quadrilateral Surfaces A subdivision scheme for hexahedral meshes

2005

Generate Light: Lux Lighted Cube

by sbrothier
A highly versatile, durable, illuminated cube with hollow interior, for use indoors or outdoors: a lighted planter, toy box, magazine holder, wine & beer cooler...Two sides of the cube are convex and two concave, allowing two or more cubes to be stacked and used as book or display cases. Putting the cube on a concave side creates a comfortable, lighted stool with storage area below

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