New Developments on Computer Algebra Packages (Andr´es Iglesias, Tetsuo Ida) -- A General Computational Scheme for Testing Admissibility of Nilpotent Orbits of Real Lie Groups of Inner Type -- Efficient Implementation of Polynomial Arithmetic in a Multiple-Level Programming Environment -- Development of a Maple Macro Package Suitable for Drawing Fine -Pictures -- Matlab-Based Problem-Solving Environment for Geometric Processing of Surfaces -- A Mathematica Notebook for Computing the Homology of Iterated Products of Groups -- Interfacing Computer Algebra and Mathematical Visualization (Konrad Polthier) -- GCLC — A Tool for Constructive Euclidean Geometry and More Than That -- jReality, jtem, and Oorange — A Way to Do Math with Computers -- MuPAD’s Graphics System -- Software for Algebraic Geometry and Related Topics (Nobuki Takayama, Gert-Martin Greuel) -- An Efficient Implementation for Computing Gröbner Bases over Algebraic Number Fields -- Tree Checking for Sparse Complexes -- The SARAG Library: Some Algorithms in Real Algebraic Geometry -- Algebraic Computation of Some Intersection D-Modules -- Plural, a Non–commutative Extension of Singular: Past, Present and Future -- Number Theoretical Software (Ken Nakamula, Michael Pohst) -- Development of NZMATH -- KASH: Recent Developments -- Methods in Computational Number Theory (David Sevilla, Jaime Gutierrez) -- Making Change and Finding Repfigits: Balancing a Knapsack -- Robust HGCD with No Backup Steps -- Free Software for Computer Algebra (Joris Van Der Hoeven) -- The Design of CoCoALib -- Software for Optimization and Geometric Computation (Komei Fukuda, Michael Joswig) -- Generation of Oriented Matroids Using Satisfiability Solvers -- Flexible Object Hierarchies in Polymake -- A Presentation of the Gfan Software -- Parallel Homotopy Algorithms to Solve Polynomial Systems -- DEpthLAUNAY -- iB4e: A Software Framework for Parametrizing Specialized LP Problems -- Primal-Dual Enumeration for Multiparametric Linear Programming -- A Parallel, Asynchronous Method for Derivative-Free Nonlinear Programs -- Convergent SDP-Relaxations for Polynomial Optimization with Sparsity -- Methods and Software for Computing Mathematical Functions (Amparo Gil, Javier Segura) -- Algorithm and Software for Integration over a Convex Polyhedron -- A Matlab Implementation of an Algorithm for Computing Integrals of Products of Bessel Functions -- Computation of the Real Zeros of the Kummer Function M(a;c;x) -- Towards Reliable Software for the Evaluation of a Class of Special Functions -- Access to Mathematics on the Web (Paul Libbrecht) -- Multimedia Prototype of a Bilingual Model Within Technology Based Learning Environment: An Implementation of a Mathematics Learning Framework -- Methods to Access and Retrieve Mathematical Content in ActiveMath -- Logiweb – A System for Web Publication of Mathematics -- General Track -- Interfacing with the Numerical Homotopy Algorithms in PHCpack -- Computational Construction of a Maximum Equilateral Triangle Inscribed in an Origami -- A System for Interfacing MATLAB with External Software Geared Toward Automatic Differentiation -- KNOPPIX/Math: Portable and Distributable Collection of Mathematical Software and Free Documents -- Stability of Parametric Decomposition -- On the GAP Package sgpviz -- Making Research on Symmetric Functions with MuPAD-Combinat -- Calculating Cocyclic Hadamard Matrices in Mathematica: Exhaustive and Heuristic Searches -- An Interactive User Interface for Division Algorithms and the Buchberger Algorithm -- Experiment of Multithreading Symbolic and Algebraic Computations with OpenMP -- Links to Projects ICMS 2006 (Masayuki Noro, Nobuki Takayama) -- Links to Projects. Mathematical Software, icms2006—Developer’s Meeting.