Re: #matr~ vs ##matr

Ilya Zakharevich on Fri, 05 Feb 2021 14:54:52 +0100

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Re: #matr~ vs ##matr

To: Pari Developers Mailing List <pari-dev@pari.math.u-bordeaux.fr>
Subject: Re: #matr~ vs ##matr
From: Ilya Zakharevich <nospam-abuse@ilyaz.org>
Date: Fri, 5 Feb 2021 05:54:48 -0800
Delivery-date: Fri, 05 Feb 2021 14:54:52 +0100
In-reply-to: <20210205134643.ihupkp7klxab4cxb@math.berkeley.edu>
References: <20210205134643.ihupkp7klxab4cxb@math.berkeley.edu>
User-agent: NeoMutt/20170113 (1.7.2)

On Fri, Feb 05, 2021 at 05:46:43AM -0800, Ilya Zakharevich wrote:
>   Is not it desirable to implement ##matr as an (optimized) synonym for #matr~?
> 
> If the answer to the second question is positive, then one can maybe
> improve things by returning a special value (such as -1) for scalars…

Well, to get things yet simpler, one can make ###x to return 0 for
scalars, 1 for vectors/lists and 2 for matrices.

Thanks,
Ilya

References:
- #matr~ vs ##matr
  - From: Ilya Zakharevich <nospam-abuse@ilyaz.org>

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