Received: by 10.151.108.15 with SMTP id k15mr127933ybm.12.1239846335564; Wed, 15 Apr 2009 18:45:35 -0700 (PDT)Date: Wed, 15 Apr 2009 18:45:35 -0700 (PDT)X-IP: 128.122.20.36User-Agent: G2/1.0X-Google-Token: RWYa_gwAAAARJN4VVdW3fjSI4cBIl-xfX-HTTP-UserAgent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.8.1.14) Gecko/20080404 Firefox/2.0.0.14,gzip(gfe),gzip(gfe)Message-ID: <508750ed-8eca-457a-b247-081f7fd7340a@q9g2000yqc.googlegroups.com>Subject: Linear Algebra in Q?From: Alex Rubinsteyn <alex.rubinsteyn>To: “Kdb+ Personal Developers” X-Google-Approved: simon.garland@gmail.com via web at 2009-04-16 07:11:26Hi,I’m writing some code which requires getting the determinant of amatrix. Does Q have bindings for any linear algebra libraries?Alternatively, has anyone written a basic set of linear algebraroutines in K or Q (aside from the built-in lsq and mmu)? Even if Ihad only a triangular decomposition, I could implement determinant ontop of that.Thanks,Alex</alex.rubinsteyn>
Date: Thu, 16 Apr 2009 11:12:16 +0300Message-ID: Subject: Re: [personal kdb+] Linear Algebra in Q?From: Felix LUNGU <felix.lungu>To: personal-kdbplus@googlegroups.comit is very to plug in any of the gsl, nag, etc into q/kdb.most of the arrays in this libs which are used as args for the functions mapdirectly on the q data structures.felixOn Thu, Apr 16, 2009 at 4:45 AM, Alex Rubinsteyn<alex.rubinsteyn> wrote:>> Hi,> I’m writing some code which requires getting the determinant of a> matrix. Does Q have bindings for any linear algebra libraries?> Alternatively, has anyone written a basic set of linear algebra> routines in K or Q (aside from the built-in lsq and mmu)? Even if I> had only a triangular decomposition, I could implement determinant on> top of that.>> Thanks,> Alex>> >></alex.rubinsteyn></felix.lungu>