# This file is part of ff3d - http://www.freefem.org/ff3d# Copyright (C) 2005 Stephane Del Pino# 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, 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.# You should have received a copy of the GNU General Public License# along with this program; if not, write to the Free Software Foundation,# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  # $Id: l2-projection-cartesian-q2.at,v 1.1 2007/06/19 22:53:11 delpinux Exp $AT_SETUP([L2-projection             (cartesian Q2-FEM)])AT_DATA([test.ff],[[vertex a = (0,0,0);vertex b = (1,2,3);vertex n = (2,4,3);mesh M = structured(n,a,b);function uexact  = x+2*y-6*z+3*x*y+2*x*z-y*z+2*x*y*z  + 3*x*x + y*y*z - x*x*(y*y-1)*z*z;solve(u:P2) in M  cg(epsilon=1E-20){  test(v)   int(u*v) = int(uexact*v);}double l2error = sqrt(int[M:P2]((u-uexact)^2));if (l2error < 1E-8)  cout << "ok\n";else  cout << "oops: l2 error is " << l2error << "\n";]])AT_CHECK([$abs_top_builddir/ff3d -V 0 -nw test.ff],0,[[ok]])AT_CLEANUP