[fpc-pascal] Numerics and graphics in Free Pascal

[Paulo Malheiros]

On Fri, 2010-12-10 at 21:49 +0000, Paulo Malheiros wrote:
> On Fri, 2010-12-10 at 22:33 +0100, Karsten Rothemund wrote:
> > Hello list,
> > 
> > I am new to the list and read it for nearly a week now. So it may be the
> > topic is already answered. In this case, I say sorry.
> > 
> > I want to start programming in Free Pascal using Lazarus (installed from
> > the Debian Squeeze) because I want to do programming on my Debian system
> > but I also want use the programs on Windows too. My interests are
> > related to numerics and scientific calculations.
> > 
> > There are two things I haven't found in the documentation up to now:
> > 
> > 1. is there a library to easy handle matrices or do other numerical
> > calculations like the numpy package does for python? (multiply, solve 
> > Ax=b, numerical integration)
> 
> To handle matrices I use DynMatrix
> http://paginas.fe.up.pt/~paco/pmwiki/index.php?n=DynMatrix.DynMatrix

ALGLIB is a cross-platform numerical analysis and data processing
library. http://www.alglib.net/

> 
> > 
> > 2. display graphic representations of data (ploting functions or points
> > in coordinate system, contour plots, 3D plots, etc; example here again
> > my be python multiplot package)? I know there is something like drawing 
> > graphic primitives (lines, points, arcs ....) which of course can be used 
> > to code something. 
> 
> Lazarus has TAChart component for 2D graphs
> http://wiki.lazarus.freepascal.org/TAChart
> 
> I've used GLScene for some 3D plotting
> http://wiki.lazarus.freepascal.org/GLScene
> 
> You should try the Lazarus mailing list for extra help.
> 
> Paulo M.
> 
> > 
> > But I don't what to invent the wheel again ;)
> > 
> > Thank you for your answers
> > 
> > Karsten
> > 
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> 
> 
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