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I want to get started on scientific programming on the Mac using Objective-C. I am very familiar with MATLAB which makes it easy to store complex-valued waveform data in vectors and generating plots. I was wondering if there might be a good resource that might compare how you would implement common MATLAB operations (i.e. creating an array of complex values or generating a mesh plot) in an Objective-C/Cocoa environment.

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You might want to take a look at interfacing with the Visualization ToolKit (VTK).…. – Allan P. Engsig-Karup Dec 17 '11 at 18:38
Any particular reason you want to resign from the huge, powerful stack of cross-platform tools for a sake of using an esoteric language built exclusively for making GUIs and working only on a hardware that can't be reasonably used for any serious HPC? – mbq Dec 17 '11 at 23:55
@mbq Maybe to integrate well with an existing xGrid setup? – Fomite Dec 20 '11 at 21:36

I don't know of any Objective-C-specific libraries or frameworks, but there are a large number of libraries written in and available for plain C, and you should be able to use them with Objective-C.

Using C allows you to use PETSc, gsl, LAPACK, and loads of other useful numerical libraries. I would advise against trying to code the matlab routines yourself. Internally, matlab likely uses well-known numerical libraries itself.

If you're looking for numerical libraries in an object-oriented language, you might want to look into using C++, which has Armadillo and Trilinos available.

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if you are completely unfamiliar with C, but are using matlab as your base starting point, i would actually recommend fortran90 over C. the languages are so incredibly similar it is scary (as far as syntax goes at least)

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You may want to look at this series of articles on scientific computing with Cocoa from MacResearch.

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