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 * ''Ryan Hoban'': '''Geometric Structures'''. Using sage to draw geometric structures in the Hyperbolic plane. (Slides available <a href="http://www.math.umd.edu/~rfhoban/GeometricStructures.pdf"> here</a>  * ''Ryan Hoban'': '''Geometric Structures'''. Using sage to draw geometric structures in the Hyperbolic plane. (Slides available [[http://www.math.umd.edu/~rfhoban/GeometricStructures.pdf|here]])
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           [http://wiki.sagemath.org/Days9Projects?action=AttachFile&do=get&target=Equations_on_words_with_color.sws Equations_on_words_with_color.sws] (Next version of [http://code.google.com/p/sage-words/ sage-words package] needed to run it!!)            [[http://wiki.sagemath.org/Days9Projects?action=AttachFile&do=get&target=Equations_on_words_with_color.sws|Equations_on_words_with_color.sws]] (Next version of [[http://code.google.com/p/sage-words/|sage-words package]] needed to run it!!)
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           [http://wiki.sagemath.org/Days9Projects?action=AttachFile&do=view&target=ChristoffelWord.py ChristoffelWord.py]
        3. Add gridlines support for show() in sage. Franco Saliola improved *a lot* my initial patch by changing it all (!!) and added many options to make it work like in Matematica. See [http://trac.sagemath.org/sage_trac/ticket/3825 Ticket #3825]
           [[http://wiki.sagemath.org/Days9Projects?action=AttachFile&do=view&target=ChristoffelWord.py|ChristoffelWord.py]]
        3. Add gridlines support for show() in sage. Franco Saliola improved *a lot* my initial patch by changing it all (!!) and added many options to make it work like in Matematica. See [[http://trac.sagemath.org/sage_trac/ticket/3825|Ticket #3825]]
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 * ''Jakub Marecek'': '''Toy Integer Programming Solver'''. A very limited integer programming solver for instances with 3 variables, but complete with several primal heuristics in use today, and visualising the workings nicely. See [http://wiki.sagemath.org/JakubMarecek here] for more.  * ''Jakub Marecek'': '''Toy Integer Programming Solver'''. A very limited integer programming solver for instances with 3 variables, but complete with several primal heuristics in use today, and visualising the workings nicely. See [[http://wiki.sagemath.org/JakubMarecek|here]] for more.

Sage days 9 Student Projects

Please add your project to this list. Follow the examples that are already there.

  • Adrian Belshaw: Unimodular Polynomials. Using Sage to draw unimodualr polynomials on the unit circle in the complex plane.

  • Arnaud Bergeron: Better adaptive plotting in Sage. At William's request, I am working on better adaptive refinement for Sage's plot() command.

  • Drew Chorney: Fundamental Domains of Congruence Subgroups and an Animation of a Geodesic :Some Geodesic's on the identification space of a fundamental domain for PSL(2,Z) in jyscript. And visualization of fundamental domains for congruence subgroups using SAGE.

  • Mclean Edwards, Scott Zhou: BFGS Iterates. Plotting iterates, in an interactive manner, of the celebrated BFGS method for the minimization of nonconvex and convex functions. Comparison of sage, jyscript/piscript, and our own python-based solutions.

  • Adam Getchell: Nonlinear Dynamics in SAGE. Illustrate and solve solutions to non-linear equations. Add basic cobweb diagrams. Wrap Maxima's CTensor package and compare speed with SAGE's Christoffel symbol calculation in calculus/tests.py.

  • Yair Go1dberg: 3D Graphing in PiScript. Plotting 3 dimensional functions in PiScript.

  • Ryan Hoban: Geometric Structures. Using sage to draw geometric structures in the Hyperbolic plane. (Slides available here)

  • Steve Kieffer: Algebra sketches. Tools with which to produce sketches of a kind often drawn on blackboards to illustrate algebraic structures.

  • Avra Laarakker: Properties of Digit Sets and Dilation Matrices using Sage. Given a dilation matrix A, and a digit set D, want to see visually if a tiling of Z^n is possible.

  • Sébastien Labbé: Combinatorics on words.

    1. Use colors and @interact of sage to study equations on words.
    2. Use jyscript and jython to create a java applet to illustrate Christoffel words
    3. Add gridlines support for show() in sage. Franco Saliola improved *a lot* my initial patch by changing it all (!!) and added many options to make it work like in Matematica. See Ticket #3825

  • Michael Lamoureux: EasyBalls. A 2D animation of colliding balls, maybe with gravity, maybe with E&M if I can get the 3D in there.

  • Jakub Marecek: Toy Integer Programming Solver. A very limited integer programming solver for instances with 3 variables, but complete with several primal heuristics in use today, and visualising the workings nicely. See here for more.

  • Aurel Meyer: Symmetry groups of polytopes. Graphics to illustrate that all symmetry groups of regular polytopes are finite Coxeter groups.

  • Zhivko Nedev: Encoding/Representing a class of combinatorial structures and making tools for their visualization and analysis. The comb. structure is a MINIMAL edge coloring of K_n, the complete graph, with the following properties:

    1. No two adjacent edges have the same color.
    2. Our coloring splits the set of edges of K_n into color classes; we require that every class has at least two members.
    3. The coloring is minimal by inclusion. That is, if we delete any subset of vertices of K_n (and any adjacent edges), then property 2 is violated - there will be at least one color class with one member.
  • Olesya Peshko: Intensity-based Image Segmentation Tool A simple segmentation tool which shows regions of the image (represented by a 2D or 3D matrix of pixel/voxel intensity values) in different colours for easy visualization of the structures shown in the image.

  • Ignacio Rozada: Python and PDE's. Solving and plotting numerical solutions to reaction-diffusion partial differential equations on growing domains; a comparison between scipy-matplotlib and matlab.

  • Véronique Sangin-Gagnon: Triangle Hyperbolic Group Graphics that show the representation of a hyperbolic group.

  • Matthew Stamps: Topological Methods for Determining Graph Colourablility Graph colouring problems are, in general, very difficult and often require a wide variety of mathematical techniques to solve. A number of topological methods for bounding the chromatic number of a graph have been developed over the last 30 years. I will introduce one such approach with the help of an interactive graph editor I developed in PiScript/JyScript this week.

Days9Projects (last edited 2008-11-14 13:42:05 by localhost)