Σεπτεμβρίου 2, 2008
Yesterday, I was searching for some nice mathematics applications, mainly for computer algebra, in Linux and here are my two main conclusions. First, there are hundreds of math programs and libraries out there for any need! Second, try to stick with Debian-based distros, or else you ‘ll end up compiling the universe. In the beginning, [...]
Filed under:
Linux, Mathematics by dimitris
Αυγούστου 28, 2008
Four months after 0.44, a new release of Social Networks Visualiser is ready. Version 0.45 fixes a thousand (short of…) bugs, and adds new features, such as initial support for GraphML, four new node shapes and new widgets for network rotation and zooming. My plan is to have GraphML as the default format. At the [...]
Filed under:
C++, Qt, SNA by dimitris
Αυγούστου 5, 2008
This is a very simple Pascal program I wrote in mid 1990s, which solves a sparse NxN linear system using the Succesive Overrelaxation Method (SOR), which in turn is based on Gauss Seidel Method. Both methods are iterative. N is initially set at maximum …64. You need the W factor for the SOR to complete [...]
Filed under:
Mathematics, Open Source by dimitris
Αυγούστου 5, 2008
This Pascal program is usefull in solving large tridiagonal linear systems. An example is the systems emerging from numerically integrating parabolic PDE’s by Finite Differences method. It was ported to Turbo Pascal from a Fortran 77 program. Its usage is very simple. All you have to do is to enter dimension of the system and [...]
Filed under:
Mathematics, Open Source by dimitris
Αυγούστου 4, 2008
This Pascal program finds the value of a Nth order polynomial: implementing Horner method without using any complex arithmetic in Fortran 77. Obviously, it can find complex values, for complex x’s, but without complex arithmetic. The program also uses ANSI codes to clear screen.
Filed under:
Mathematics by dimitris