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Re: Learning C as an existing programmer

Newsgroups comp.lang.c
From Heikki Kallasjoki <fis+usenet@zem.fi>
Subject Re: Learning C as an existing programmer
References <js8275$cpo$1@speranza.aioe.org> <XLSdnSdxHdOhj3XSnZ2dnUVZ8midnZ2d@lyse.net> <js9dn4$62l$1@speranza.aioe.org>
Organization nonexistent
Message-ID <slrnjuggug.8un.fis@iris.zem.fi> (permalink)
Date 2012-06-25 10:56 +0000

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On 2012-06-25, Rui Maciel <rui.maciel@gmail.com> wrote:
> Even if a user wants to toy around with numerical analyis stuff without 
> having to look too much under the hood, Python is still not an adequate 
> option; there is Matlab/Octave for that.

Python with NumPy/SciPy can be a perfectly adequate option, when
compared to Octave, especially for people with no Matlab background.

Octave might provide a larger amount of functions (especially if
counting the octave-forge package collection), but the NumPy/SciPy API
is by no means barren.  (Even if it is a bit messy.)

As far as performance goes, they use largely the same libraries (ATLAS,
LAPACK, ARPACK, FFTW, ...) for heavy lifting, and for the odd loop (that
can't be easily turned into a matrix operation) here and there Octave
can be really very slow.  In some random benchmarks NumPy performance
has been somewhere in-between Matlab and Octave for matrix-handling
code, and orders of magnitude better than Octave for "regular" code that
you might also want to have in the same program.  (YMMV, as always; the
benchmarks I found weren't especially comprehensive.)


-- 
Heikki Kallasjoki

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Learning C as an existing programmer rammy <nospam@nospam.com> - 2012-06-24 21:52 +0000
  Re: Learning C as an existing programmer Ian Collins <ian-news@hotmail.com> - 2012-06-25 10:26 +1200
    Re: Learning C as an existing programmer "Charles Richmond" <numerist@aquaporin4.com> - 2012-06-24 18:28 -0500
      Re: Learning C as an existing programmer "Joe." <antelope3@news.net> - 2012-06-25 01:05 -0600
      Re: Learning C as an existing programmer "Joe." <antelope3@news.net> - 2012-06-25 01:10 -0600
        Re: Learning C as an existing programmer Weland <weland@faeroes.freeshell.org> - 2012-06-25 08:20 +0000
          Re: Learning C as an existing programmer "Joe." <antelope3@news.net> - 2012-07-02 01:46 -0600
      Re: Learning C as an existing programmer Edward Rutherford <edward.p.rutherford79@REMOVETHIS.gmail.com> - 2012-06-25 20:37 +0000
        Re: Learning C as an existing programmer James Kuyper <jameskuyper@verizon.net> - 2012-06-25 16:51 -0400
        Re: Learning C as an existing programmer Keith Thompson <kst-u@mib.org> - 2012-06-25 14:25 -0700
          Re: Learning C as an existing programmer Les Cargill <lcargill99@comcast.com> - 2012-06-25 17:50 -0500
          Re: Learning C as an existing programmer William Ahern <william@wilbur.25thandClement.com> - 2012-06-25 16:52 -0700
        Re: Learning C as an existing programmer Les Cargill <lcargill99@comcast.com> - 2012-06-25 17:49 -0500
        Re: Learning C as an existing programmer nick_keighley_nospam@hotmail.com - 2012-06-26 00:09 -0700
    Re: Learning C as an existing programmer "Joe." <antelope3@news.net> - 2012-06-25 00:55 -0600
    Re: Learning C as an existing programmer Nachy <mazwolfe@gmail.com> - 2012-06-25 13:26 -0700
      Re: Learning C as an existing programmer James Kuyper <jameskuyper@verizon.net> - 2012-06-25 17:07 -0400
      Re: Learning C as an existing programmer Nachy <mazwolfe@gmail.com> - 2012-06-25 14:56 -0700
        Re: Learning C as an existing programmer James Kuyper <jameskuyper@verizon.net> - 2012-06-25 18:29 -0400
        Re: Learning C as an existing programmer pete <pfiland@mindspring.com> - 2012-06-25 18:56 -0400
          Re: Learning C as an existing programmer nick_keighley_nospam@hotmail.com - 2012-06-26 00:21 -0700
            Re: Learning C as an existing programmer Robert Wessel <robertwessel2@yahoo.com> - 2012-06-26 02:56 -0500
            Re: Learning C as an existing programmer Ike Naar <ike@sverige.freeshell.org> - 2012-06-26 08:10 +0000
        Re: Learning C as an existing programmer "J. J. Farrell" <jjf@bcs.org.uk> - 2012-06-26 07:06 +0100
      Re: Learning C as an existing programmer nick_keighley_nospam@hotmail.com - 2012-06-26 00:18 -0700
        Re: Learning C as an existing programmer Keith Thompson <kst-u@mib.org> - 2012-06-26 00:23 -0700
        Re: Learning C as an existing programmer James Kuyper <jameskuyper@verizon.net> - 2012-06-26 06:47 -0400
  Re: Learning C as an existing programmer Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-06-25 01:21 +0100
  Re: Learning C as an existing programmer "Joe." <antelope3@news.net> - 2012-06-25 00:54 -0600
  Re: Learning C as an existing programmer David Brown <david@westcontrol.removethisbit.com> - 2012-06-25 09:19 +0200
    Re: Learning C as an existing programmer Rui Maciel <rui.maciel@gmail.com> - 2012-06-25 11:15 +0100
      Re: Learning C as an existing programmer "Ronald Benedik" <Aon.912717285@aon.at> - 2012-06-25 12:30 +0200
        Re: Learning C as an existing programmer Rui Maciel <rui.maciel@gmail.com> - 2012-06-25 11:43 +0100
          Re: Learning C as an existing programmer "Ronald Benedik" <Aon.912717285@aon.at> - 2012-06-25 12:55 +0200
      Re: Learning C as an existing programmer Jorgen Grahn <grahn+nntp@snipabacken.se> - 2012-06-25 10:38 +0000
        Re: Learning C as an existing programmer Rui Maciel <rui.maciel@gmail.com> - 2012-06-25 13:05 +0100
      Re: Learning C as an existing programmer Heikki Kallasjoki <fis+usenet@zem.fi> - 2012-06-25 10:56 +0000
      Re: Learning C as an existing programmer David Brown <david@westcontrol.removethisbit.com> - 2012-06-25 13:34 +0200
        Re: Learning C as an existing programmer Rui Maciel <rui.maciel@gmail.com> - 2012-06-25 12:43 +0100
          Re: Learning C as an existing programmer David Brown <david@westcontrol.removethisbit.com> - 2012-06-25 15:16 +0200
            Re: Learning C as an existing programmer Rui Maciel <rui.maciel@gmail.com> - 2012-06-25 14:39 +0100
              Re: Learning C as an existing programmer David Brown <david@westcontrol.removethisbit.com> - 2012-06-26 11:07 +0200
                Re: Learning C as an existing programmer Rui Maciel <rui.maciel@gmail.com> - 2012-06-26 12:05 +0100
                Re: Learning C as an existing programmer David Brown <david@westcontrol.removethisbit.com> - 2012-06-26 14:28 +0200
            Re: Learning C as an existing programmer Rui Maciel <rui.maciel@gmail.com> - 2012-06-25 14:39 +0100
    Re: Learning C as an existing programmer 88888 Dihedral <dihedral88888@googlemail.com> - 2012-06-25 18:21 -0700
      Re: Learning C as an existing programmer David Brown <david@westcontrol.removethisbit.com> - 2012-06-26 11:03 +0200
  Re: Learning C as an existing programmer Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-06-25 00:50 -0700
    Re: Learning C as an existing programmer Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-06-25 11:50 +0100
      Re: Learning C as an existing programmer gwowen <gwowen@gmail.com> - 2012-06-25 04:32 -0700
        Re: Learning C as an existing programmer Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-06-25 14:25 +0100
          Re: Learning C as an existing programmer gwowen <gwowen@gmail.com> - 2012-06-26 02:38 -0700
            Re: Learning C as an existing programmer jacob navia <jacob@spamsink.net> - 2012-06-26 12:13 +0200
              Re: Learning C as an existing programmer jacob navia <jacob@spamsink.net> - 2012-06-26 12:15 +0200
              Re: Learning C as an existing programmer Ian Collins <ian-news@hotmail.com> - 2012-06-26 23:08 +1200
            Re: Learning C as an existing programmer Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-06-27 01:55 +0100
              Re: Learning C as an existing programmer 88888 Dihedral <dihedral88888@googlemail.com> - 2012-06-26 18:43 -0700
        Re: Learning C as an existing programmer Tim Rentsch <txr@alumni.caltech.edu> - 2012-06-25 14:27 -0700
          Re: Learning C as an existing programmer Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-06-26 00:18 -0700
            Re: Learning C as an existing programmer nick_keighley_nospam@hotmail.com - 2012-06-26 04:02 -0700
            Re: Learning C as an existing programmer Tim Rentsch <txr@alumni.caltech.edu> - 2012-06-26 05:54 -0700
              Re: Learning C as an existing programmer Tim Rentsch <txr@alumni.caltech.edu> - 2012-06-26 07:22 -0700
                Re: Learning C as an existing programmer Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-06-28 04:28 -0700
                Re: Learning C as an existing programmer Tim Rentsch <txr@alumni.caltech.edu> - 2012-06-29 10:07 -0700
                Re: Learning C as an existing programmer Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-07-02 08:57 -0700
                Re: Learning C as an existing programmer gwowen <gwowen@gmail.com> - 2012-07-03 03:26 -0700
                Re: Learning C as an existing programmer Tim Rentsch <txr@alumni.caltech.edu> - 2012-07-06 16:28 -0700
                Re: Learning C as an existing programmer Tim Rentsch <txr@alumni.caltech.edu> - 2012-07-06 18:16 -0700
                Re: Learning C as an existing programmer Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-07-07 04:51 -0700
                Re: Learning C as an existing programmer Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-07-07 16:48 +0100
                Re: Learning C as an existing programmer Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-07-07 09:07 -0700
                Re: Learning C as an existing programmer Tim Rentsch <txr@alumni.caltech.edu> - 2012-07-07 12:27 -0700
              Re: Learning C as an existing programmer Rui Maciel <rui.maciel@gmail.com> - 2012-07-03 15:01 +0100
                Re: Learning C as an existing programmer Tim Rentsch <txr@alumni.caltech.edu> - 2012-07-06 16:13 -0700
                Re: Learning C as an existing programmer Rui Maciel <rui.maciel@gmail.com> - 2012-07-07 19:35 +0100
                Re: Learning C as an existing programmer Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-07-07 11:52 -0700
                Re: Learning C as an existing programmer Tim Rentsch <txr@alumni.caltech.edu> - 2012-07-07 19:40 -0700
          Re: Learning C as an existing programmer gwowen <gwowen@gmail.com> - 2012-06-26 03:03 -0700
            Re: Learning C as an existing programmer Tim Rentsch <txr@alumni.caltech.edu> - 2012-06-26 06:34 -0700
            Re: Learning C as an existing programmer Tim Rentsch <txr@alumni.caltech.edu> - 2012-06-26 06:40 -0700
            Re: Learning C as an existing programmer Gareth Owen <gwowen@gmail.com> - 2012-06-27 07:16 +0100
              Re: Learning C as an existing programmer James Kuyper <jameskuyper@verizon.net> - 2012-06-27 06:48 -0400
            Re: Learning C as an existing programmer "io_x" <a@b.c.invalid> - 2012-06-28 09:18 +0200
              Re: Learning C as an existing programmer nick_keighley_nospam@hotmail.com - 2012-06-28 02:02 -0700
                Re: Learning C as an existing programmer "io_x" <a@b.c.invalid> - 2012-06-28 12:19 +0200
          Re: Learning C as an existing programmer Rui Maciel <rui.maciel@gmail.com> - 2012-07-03 15:00 +0100
            Re: Learning C as an existing programmer Tim Rentsch <txr@alumni.caltech.edu> - 2012-07-06 15:56 -0700
              Re: Learning C as an existing programmer Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-07-07 09:18 -0700
                Re: Learning C as an existing programmer Tim Rentsch <txr@alumni.caltech.edu> - 2012-07-07 11:56 -0700

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