hermann on Mon, 01 Jan 2024 18:27:52 +0100


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Re: gp_oeis_search (Search integer sequence specified by short PARI/GP script on oeis.org)


Dear Karim,

On 2024-01-01 15:14, Karim Belabas wrote:
Dear Hermann,

Another interesting option is to do it all from gp:

  oeis(v)=
  { my(s = ""); for (i=1, #v, s = concat(s, Str(v[i]",")));
    extern(Str("$BROWSER https://oeis.org/search?q=";, s))
  }

  v = vector(40, i, qfbclassno(-4*i)); /* some sequence of interest */
  oeis(v);

I happen to have a BROWSER environment variable, but you could of course
replace $BROWSER by a hardcoded path to your favourite browser.

I stored that GP script on x86_64 Ubuntu 22.04 desktop system and it just worked.

But the aarch64 GP runs into an error, although it does show the correct page in firefox.
What might be the problem?

pi@raspberrypi5:~ $ BROWSER=firefox gp oeis.gp
Reading GPRC: /etc/gprc
GPRC Done.

                  GP/PARI CALCULATOR Version 2.15.4 (released)
         arm64 running linux (aarch64/GMP-6.2.1 kernel) 64-bit version
          compiled: Dec  9 2023, gcc version 12.2.0 (Debian 12.2.0-14)
                           threading engine: pthread
                 (readline v8.2 enabled, extended help enabled)

                     Copyright (C) 2000-2022 The PARI Group

PARI/GP is free software, covered by the GNU General Public License, and comes
WITHOUT ANY WARRANTY WHATSOEVER.

Type ? for help, \q to quit.
Type ?18 for how to get moral (and possibly technical) support.

parisizemax = 2000011264, primelimit = 500000, nbthreads = 4
  ***   syntax error, unexpected ']': [GFX1-
  ***   ]:glxtest:DRMrendernodenotclearlydetecta
  ***   ^----------------------------------------


Regards,

Hermann.