# Development ideas

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## Development ideas

 Dear all, some students want to develop stuff for PolyMath. There is already some ideas in the PolyMath issue tracker here: https://github.com/PolyMathOrg/PolyMath/issuesIf you are need something you can add more here. Thank you. -- Serge Stinckwich UCBN & UMI UMMISCO 209 (IRD/UPMC) Every DSL ends up being Smalltalk http://www.doesnotunderstand.org/-- You received this message because you are subscribed to the Google Groups "SciSmalltalk" group. To unsubscribe from this group and stop receiving emails from it, send an email to [hidden email]. For more options, visit https://groups.google.com/d/optout.
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## Re: Development ideas

 Hi serge here is a list I created around matrix. I do not know if it helps. Here is a list Johann DICHTL  gave me and I think that he would be good to have him as client What I'm missing in polymath is mostly related to the DhbMatrix and DhbVector classes:      - support for working in homogeneous coordinates (2d and 3d)      - - setting the translation without two "at: ... at: ... put: ..." messages      - - support to convert between 2d vectors and point objects      - - setting the rotation sub-matrix via angle (and accessing the angle of a rotation matrix)      - - accessor methods for the rotation sub matrix      - - for 3d rotation matrix:      - - - get/set euler angles      - - - support for quaternions      - matrix constructors:      - - zero(s): creates a matrix with all values set to zero      - - identity: creates an identity matrix      - matrix solver: solving the linear equation system - support for 32bit floats: it's simply faster, and the precision of a double is usually not needed for my work.      I only found the "DhbLargestEigenValueFinder" class (undocumented), and it does not seem to compute all eigenvalues, as I would need. The DhbMatrix class does not provide any methods to compute eigenvalues/-vectors. On a side note, I'm using Pharo 4, things might look a bit different with Pharo 5.      There are two more things that I forgot last time about "missing in PolyMath":      - SVD (Singular Value Decomposition)      - Eigenvalues / -vectors Le 5/11/16 à 17:52, Serge Stinckwich a écrit : > Dear all, > > some students want to develop stuff for PolyMath. There is already > some ideas in the PolyMath issue tracker here: > https://github.com/PolyMathOrg/PolyMath/issues> If you are need something you can add more here. > > Thank you. > -- You received this message because you are subscribed to the Google Groups "SciSmalltalk" group. To unsubscribe from this group and stop receiving emails from it, send an email to [hidden email]. For more options, visit https://groups.google.com/d/optout.
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## Re: Development ideas

 In reply to this post by SergeStinckwich serge could you check the mail I sent to you a while ago about matrixes and   other enhancements? Stef > Dear all, > > some students want to develop stuff for PolyMath. There is already > some ideas in the PolyMath issue tracker here: > https://github.com/PolyMathOrg/PolyMath/issues> If you are need something you can add more here. > > Thank you. > -- Using Opera's mail client: http://www.opera.com/mail/-- You received this message because you are subscribed to the Google Groups "SciSmalltalk" group. To unsubscribe from this group and stop receiving emails from it, send an email to [hidden email]. For more options, visit https://groups.google.com/d/optout.