O yes, nice ;-)

2007/12/11, Michael Gogins <gogins@pipeline.com>:
>
> I am designing a set of Csound opcodes to bring standard linear algebra
> routines into the Csound orchestra language.
>
> This would essentially be most of BLAS levels 1, 2, and 3 plus LAPACK: all
> arithmetic between real and complex scalars, vectors, and matrices including
> dot products; norms and determinants; powers and exponents; and matrix
> inverse, linear solutions, and matrix decompositions including eigenvalues.
>
> The Csound data types that would work with these opcodes would include
> irate and krate scalars and complex, arate real vectors, function tables as
> real vectors, fsigs as complex vectors, wsigs as complex vectors, and irate
> custom-allocated real and complex vectors and matrices.
>
> I will probably go ahead and just do this, but if people are interested
> enough perhaps we could get it into the next release. All of the work
> required is creating opcode wrappers for existing libraries, and
> documentation.
>
> For the sake of efficiency, the results of operations should probably go
> into preallocated objects at the leftmost position in the argument list
> (except for scalar results). I am not sure about opcode names and
> signatures. Perhaps names reminiscent of BLAS and LAPACK routines, but with
> simplified arguments, would be a good idea (e.g. la_dgemv vecout, matin,
> vecin). Alternatively, more mathematically styled names could be used (e.g.
> la_dot vecout, matin, vecin).
>
> These opcodes would make it possible to do a good deal of matlab-style DSP
> directly in the Csound orchestra language, instead of writing new opcodes in
> C.
>
> Please let me know your thoughts...
>
> Mike
>
>
>
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