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view examples/@polynomial/display.m @ 11032:c9b0a75b02e8

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Make all regexp in Octave compatible with both POSIX and PCRE.
author Rik <octave@nomad.inbox5.com>
date Tue, 28 Sep 2010 09:25:14 -0700
parents 567e3e4ab74d
children 1b48b209a8d6
line wrap: on
line source

function display (p)
  a = p.poly;
  first = true;
  fprintf("%s =", inputname(1));
  for i = 1 : length (a);
    if (a(i) != 0)
      if (first)
        first = false;
      elseif (a(i) > 0)
        fprintf (" +");
      endif
      if (a(i) < 0)
        fprintf (" -");
      endif
      if (i == 1)
        fprintf (" %g", abs (a(i)));
      elseif (abs(a(i)) != 1)
        fprintf (" %g *", abs (a(i)));
      endif
      if (i > 1)
        fprintf (" X");
      endif
      if (i > 2)
        fprintf (" ^ %d", i - 1);
      endif
    endif
  endfor
  if (first)
    fprintf(" 0");
  endif
  fprintf("\n");
endfunction