Mercurial > octave
view scripts/miscellaneous/is_leap_year.m @ 1315:611d403c7f3d
[project @ 1995-06-25 19:56:32 by jwe]
author | jwe |
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date | Sun, 25 Jun 1995 19:56:32 +0000 |
parents | e357dced2de7 |
children | 5d29638dd524 |
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# Copyright (C) 1994, 1995 John W. Eaton # # This file is part of Octave. # # Octave 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, or (at your option) any # later version. # # Octave 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. # # You should have received a copy of the GNU General Public License # along with Octave; see the file COPYING. If not, write to the Free # Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. function retval = is_leap_year (year) # usage: is_leap_year (year) # # Return 1 if the given year is a leap year; otherwise, return 0. # With no arguments, use the current year. if (nargin > 1) usage ("is_leap_year (year)"); endif if (nargin == 0) t = clock (); year = t (1); endif retval = ((rem (year, 4) == 0 & rem (year, 100) != 0) ... | rem (year, 400) == 0); endfunction