function pdemodel
[pde_fig,ax]=pdeinit;
pdetool('appl_cb',1);
pdetool('snapon','on');
set(ax,'DataAspectRatio',[1 1.5 1]);
set(ax,'PlotBoxAspectRatio',[1 0.66666666666666663 1.6666666666666665]);
set(ax,'XLim',[-0.10000000000000001 1.1000000000000001]);
set(ax,'YLim',[-0.10000000000000001 1.1000000000000001]);
set(ax,'XTickMode','auto');
set(ax,'YTickMode','auto');
pdetool('gridon','on');

% Geometry description:
pderect([0 0.99999999999999978 0 1],'SQ1');
set(findobj(get(pde_fig,'Children'),'Tag','PDEEval'),'String','SQ1')

% Boundary conditions:
pdetool('changemode',0)
pdesetbd(4,...
'dir',...
1,...
'1',...
'0')
pdesetbd(3,...
'dir',...
1,...
'1',...
'2*x.*sin(3*x)')
pdesetbd(2,...
'dir',...
1,...
'1',...
'2*sin(3*y)')
pdesetbd(1,...
'dir',...
1,...
'1',...
'0')

% Mesh generation:
setuprop(pde_fig,'Hgrad',1.3);
setuprop(pde_fig,'refinemethod','regular');
pdetool('initmesh')

% PDE coefficients:
pdeseteq(1,...
'1.0',...
'0.0',...
'(-12*y.*cos(3*x.*y)+18*x.*y.*y.*sin(3*x.*y)+18*x.*x.*x.*sin(3*x.*y))',...
'1.0',...
'0:10',...
'0.0',...
'0.0',...
'[0 100]')
setuprop(pde_fig,'currparam',...
['1.0                                                                 ';...
'0.0                                                                 ';...
'(-12*y.*cos(3*x.*y)+18*x.*y.*y.*sin(3*x.*y)+18*x.*x.*x.*sin(3*x.*y))';...
'1.0                                                                 '])

% Solve parameters:
setuprop(pde_fig,'solveparam',...
str2mat('0','1000','10','pdeadworst',...
'0.5','longest','0','1E-4','','fixed','Inf'))

% Plotflags and user data strings:
setuprop(pde_fig,'plotflags',[1 1 1 1 1 1 1 1 0 0 0 1 1 0 0 0 0 1]);
setuprop(pde_fig,'colstring','');
setuprop(pde_fig,'arrowstring','');
setuprop(pde_fig,'deformstring','');
setuprop(pde_fig,'heightstring','');

% Solve PDE:
pdetool('solve')
