Re: Extracting a column of a matrix as a column vector

Loïc Grenié on Wed, 17 May 2017 17:19:07 +0200

Re: Extracting a column of a matrix as a column vector

To: Dirk Laurie <dirk.laurie@gmail.com>
Subject: Re: Extracting a column of a matrix as a column vector
From: Loïc Grenié <loic.grenie@gmail.com>
Date: Wed, 17 May 2017 17:19:00 +0200
Cc: "pari-users@pari.math.u-bordeaux.fr" <pari-users@pari.math.u-bordeaux.fr>
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2017-05-17 17:04 GMT+02:00 Dirk Laurie <dirk.laurie@gmail.com>:

I have various clumsy solutions:

vector(matsize(A)[1], i, A[i,j])~
Vec(vecextract(A,j))[1]

I feel I am missing a trick here.

M[,j]

Loïc

References:
- Extracting a column of a matrix as a column vector
  - From: Dirk Laurie <dirk.laurie@gmail.com>