/usr/share/plplot_octave/pink.m is in octave-plplot 5.10.0+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | ## Copyright (C) 1998-2003 Joao Cardoso.
##
## This program is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by the
## Free Software Foundation; either version 2 of the License, or (at your
## option) any later version.
##
## This program is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## This file is part of plplot_octave.
## cmap = pink(m)
##
## Pastel shades of pink color map.
## pink(M) returns an M-by-3 matrix containing a "pink" colormap.
## without arguments, cmap has lenght 64
function cmap = pink(m)
if (nargin < 1)
m=64;
endif
cmap = sqrt((2*gray(m) + hot(m))/3);
endfunction
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