Lapack2 contains api protocols for all 4 cases,
single and double precision real
single and double precision complex
the signature of single precision in cd is "s"
J doesn't natively support single precision complex so that there will be
automatic conversion when calling functions involving single precision
complex arguments.
On Fri, 1 Sep 2023 at 1:02 PM Igor Zhuravlov <zhuravlov...@ya.ru> wrote:
> On 20 Aug 2023, at 07:35, Piet de Jong <pietd...@gmail.com> wrote:
> > Are there an cgee*.ijs scripts equivalent to dgee*.ijs scripts?
> > Or do they have to be crafted from eg their equivalent dgee*.ijs
> > counterparts?
>
> Sorry for delay with answer.
>
> J supports double-precision complex numbers ('Z' in LAPACK), not single-
> precision ('C'). So, you should look for zgee*.ijs scripts instead.
>
> By the way, a lot of math/lapack2 wrappers are in math/mt addon's test
> suite.
> In particular, xGEEV family wrappers are in test/lapack2/geev.ijs script:
>
> mat=. j./ i. 2 3 3 NB. sample matrix
> load 'math/mt'
> load 'math/mt/test/lapack2/geev'
> 'w Vl Vr'=. 'vv' zgeev mat
> NB. 'vv' here is to get both left and right eigenvectors
>
> --
> Regards,
> Igor
>
>
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