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User:Antonio Pino: Difference between revisions
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* Please describe your experience with C++, Octave or Matlab m-scripts, OpenGL and Qt. | * Please describe your experience with C++, Octave or Matlab m-scripts, OpenGL and Qt. | ||
I have been writing m-scripts for two years now, to solve specific engineering problems, 100-200 lines long on average. | I have been writing m-scripts for two years now, to solve specific engineering problems, 100-200 lines long on average. | ||
Apart from that, I have a basic level of C++ (not with the octave api) and I have not used OpenGL nor Qt before. | |||
* Please describe your experience with other programming languages. | * Please describe your experience with other programming languages. | ||
A big part of the programming done at Uni has been done in Python: from the basic | A big part of the programming done at Uni has been done in Python: from the basic algorithm courses to symbolic problem solving with sympy. It has also been the tool of choice for a little kludge here and there. | ||
On the other hand, I have used VHDL for building and testing a discrete signal filter. And c to do a little systems and microcontroller programming. | On the other hand, I have used VHDL for building and testing a discrete signal filter. And c to do a little systems and microcontroller programming. | ||
* Please describe your experience with being in a development team. | * Please describe your experience with being in a development team. | ||
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The biggest project I have worked on was the VHDL discrete filter, carried out along with two colleagues. The idea was to make use of all we learned about digital circuits so we implemented a RAM, adders, various types of registers, finite state machines, and we all went through the nightmare of 'looking for the bug' and creating testbenchs for vhdl. But more importantly that an innocent looking modification may break others' job. | The biggest project I have worked on was the VHDL discrete filter, carried out along with two colleagues. The idea was to make use of all we learned about digital circuits so we implemented a RAM, adders, various types of registers, finite state machines, and we all went through the nightmare of 'looking for the bug' and creating testbenchs for vhdl. But more importantly that an innocent looking modification may break others' job. | ||
By the way, knowing about the nuts and bolts of how are numbers stored in the bare metal gave me an | By the way, knowing about the nuts and bolts of how are numbers stored in the bare metal gave me an apreciation for what are the differences between an idealized (almighty) function and the ''real'' poor man's version of it. | ||
* Please state the commits and patches you already contributed to Octave. | * Please state the commits and patches you already contributed to Octave. | ||
No commits or patches done, although I have successfully built it from source and written a | No commits or patches done, although I have successfully built it from source and written a bare bones matrix cosine function | ||
[[Media:cosm.m]] based on [http://www.maths.manchester.ac.uk/~higham/narep/narep411.pdf Higham and Smith]. | [[Media:cosm.m]] based on [http://www.maths.manchester.ac.uk/~higham/narep/narep411.pdf Higham and Smith]. | ||
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I have been using octave for a long time now, in varying courses such as Linear Algebra, Control Theory, Quantum Physics. | I have been using octave for a long time now, in varying courses such as Linear Algebra, Control Theory, Quantum Physics. | ||
* What was the first question concerning Octave you could not find an answer to rather quickly? | * What was the first question concerning Octave you could not find an answer to rather quickly? | ||
Finding a way to systematically test a functions was not very easy. I also missed a guide on the differences with Matlab (specially syntax), which should be crucial as Matlab is sadly more promoted than Octave in universities and people | Finding a way to systematically test a functions was not very easy. I also missed a guide on the differences with Matlab (specially syntax), which should be crucial as Matlab is sadly more promoted than Octave in universities and people discover the latter when looking for an alternative to the former, just like me. | ||
== P: Prerequisites == | == P: Prerequisites == | ||
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* How autonomous are you when developing? | * How autonomous are you when developing? | ||
I often start with a proof of concept and 'see how it turns out' is | I often start with a proof of concept and 'see how it turns out' is usually my approach to a problem, I never start doing it blindly or without a clue, though. | ||
== Y: Your task == | == Y: Your task == | ||
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I believe this is of interest to Gnu Octave first, due to the goal of overall MATLAB compatibility and second, because more and more systems are being described by a matrix equation lately. | I believe this is of interest to Gnu Octave first, due to the goal of overall MATLAB compatibility and second, because more and more systems are being described by a matrix equation lately. | ||
funm | funm should be ready by the mid-term. The rest will follow. The tentative time line can be read in the "Additional Info URL". | ||
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On the other, more and more dynamical systems can be approximated by a Matrix differential equation, and to have efficient Matrix Function implementations in Gnu Octave will help any free software user (including myself) approach these systems. | On the other, more and more dynamical systems can be approximated by a Matrix differential equation, and to have efficient Matrix Function implementations in Gnu Octave will help any free software user (including myself) approach these systems. | ||
Finally, I have been writing m-scripts for two years now, to solve specific engineering problems, a strong python background. I order to | Finally, I have been writing m-scripts for two years now, to solve specific engineering problems, a strong python background. I order to fulfil it I will have to refresh my C++ knowledge by becoming familiar with the source tree, and get used to mercurial (hg), the version control system used to manage Gnu Octave. | ||
[1] N.J. Higham. A New sqrtm for MATLAB. Numerical Analysis Report No. 336, Manchester Centre for Computational Mathematics, Manchester, England, January 1999. | [1] N.J. Higham. A New sqrtm for MATLAB. Numerical Analysis Report No. 336, Manchester Centre for Computational Mathematics, Manchester, England, January 1999. | ||