function [ret,x0,str]=th_dem_s(t,x,u,flag);%TH_DEM_S	is the M-file description of the SIMULINK system named TH_DEM_S.%	The block-diagram can be displayed by typing: TH_DEM_S.%%	SYS=TH_DEM_S(T,X,U,FLAG) returns depending on FLAG certain%	system values given time point, T, current state vector, X,%	and input vector, U.%	FLAG is used to indicate the type of output to be returned in SYS.%%	Setting FLAG=1 causes TH_DEM_S to return state derivatives, FLAG=2%	discrete states, FLAG=3 system outputs and FLAG=4 next sample%	time. For more information and other options see SFUNC.%%	Calling TH_DEM_S with a FLAG of zero:%	[SIZES]=TH_DEM_S([],[],[],0),  returns a vector, SIZES, which%	contains the sizes of the state vector and other parameters.%		SIZES(1) number of states%		SIZES(2) number of discrete states%		SIZES(3) number of outputs%		SIZES(4) number of inputs.%	For the definition of other parameters in SIZES, see SFUNC.%	See also, TRIM, LINMOD, LINSIM, EULER, RK23, RK45, ADAMS, GEAR.% Note: This M-file is only used for saving graphical information;%       after the model is loaded into memory an internal model%       representation is used.% the system will take on the name of this mfile:sys = mfilename;new_system(sys)simver(1.2)if(0 == (nargin + nargout))     set_param(sys,'Location',[4,42,562,375])     open_system(sys)end;set_param(sys,'algorithm',		'RK-45')set_param(sys,'Start time',	'0.0')set_param(sys,'Stop time',		'8000')set_param(sys,'Min step size',	'0.0001')set_param(sys,'Max step size',	'10')set_param(sys,'Relative error','1e-3')set_param(sys,'Return vars',	'')%     Subsystem  'More Info2'.new_system([sys,'/','More Info2'])set_param([sys,'/','More Info2'],'Location',[0,0,364,143])add_block('built-in/Note',[sys,'/',['More Info2/This system models the thermodynamics of a house.',13,'The variables are initialized by a file ',13,'called "thermo_script".']])set_param([sys,'/',['More Info2/This system models the thermodynamics of a house.',13,'The variables are initialized by a file ',13,'called "thermo_script".']],...		'position',[177,25,178,26])add_block('built-in/Note',[sys,'/',['More Info2/Examine the file "thermo_script.m to',13,'get a feel for the wide range of variables at play here.']])set_param([sys,'/',['More Info2/Examine the file "thermo_script.m to',13,'get a feel for the wide range of variables at play here.']],...		'position',[185,95,186,96])set_param([sys,'/','More Info2'],...		'Mask Display','Load Data',...		'Mask Type','',...		'Mask Dialogue','eval(''thermodat'')',...		'Mask Translate','',...		'Mask Help','')%     Finished composite block 'More Info2'.set_param([sys,'/','More Info2'],...		'hide name',0,...		'Drop Shadow',4,...		'position',[132,281,217,324])%     Subsystem  'More Info1'.new_system([sys,'/','More Info1'])set_param([sys,'/','More Info1'],'Location',[0,0,364,143])add_block('built-in/Note',[sys,'/',['More Info1/Examine the file "thermo_script.m to',13,'get a feel for the wide range of variables at play here.']])set_param([sys,'/',['More Info1/Examine the file "thermo_script.m to',13,'get a feel for the wide range of variables at play here.']],...		'position',[185,95,186,96])add_block('built-in/Note',[sys,'/',['More Info1/This system models the thermodynamics of a house.',13,'The variables are initialized by a file ',13,'called "thermo_script".']])set_param([sys,'/',['More Info1/This system models the thermodynamics of a house.',13,'The variables are initialized by a file ',13,'called "thermo_script".']],...		'position',[177,25,178,26])set_param([sys,'/','More Info1'],...		'Mask Display','Show Script\nListing',...		'Mask Type','',...		'Mask Dialogue','eval(''type thermodat'')',...		'Mask Translate','',...		'Mask Help','')%     Finished composite block 'More Info1'.set_param([sys,'/','More Info1'],...		'hide name',0,...		'Drop Shadow',4,...		'position',[292,281,377,324])add_block('built-in/Gain',[sys,'/',['Dollar',13,'Gain']])set_param([sys,'/',['Dollar',13,'Gain']],...		'Gain','cost',...		'position',[420,15,440,35])%     Subsystem  ['Temp',13,'Convert 3'].new_system([sys,'/',['Temp',13,'Convert 3']])set_param([sys,'/',['Temp',13,'Convert 3']],'Location',[577,197,810,324])add_block('built-in/Gain',[sys,'/',['Temp',13,'Convert 3/Gain1']])set_param([sys,'/',['Temp',13,'Convert 3/Gain1']],...		'Gain','5/9',...		'position',[125,17,160,53])add_block('built-in/Outport',[sys,'/',['Temp',13,'Convert 3/Celsius',13,'out']])set_param([sys,'/',['Temp',13,'Convert 3/Celsius',13,'out']],...		'position',[180,25,200,45])add_block('built-in/Inport',[sys,'/',['Temp',13,'Convert 3/Fahrenheit',13,'in']])set_param([sys,'/',['Temp',13,'Convert 3/Fahrenheit',13,'in']],...		'position',[15,15,35,35])add_block('built-in/Constant',[sys,'/',['Temp',13,'Convert 3/Constant']])set_param([sys,'/',['Temp',13,'Convert 3/Constant']],...		'Value','32',...		'position',[35,70,55,90])add_block('built-in/Sum',[sys,'/',['Temp',13,'Convert 3/Sum']])set_param([sys,'/',['Temp',13,'Convert 3/Sum']],...		'inputs','+-',...		'position',[85,15,105,50])add_line([sys,'/',['Temp',13,'Convert 3']],[165,35;170,35])add_line([sys,'/',['Temp',13,'Convert 3']],[110,35;115,35])add_line([sys,'/',['Temp',13,'Convert 3']],[40,25;75,25])add_line([sys,'/',['Temp',13,'Convert 3']],[60,80;70,80;70,40;75,40])set_param([sys,'/',['Temp',13,'Convert 3']],...		'Mask Display','F2C')%     Finished composite block ['Temp',13,'Convert 3'].set_param([sys,'/',['Temp',13,'Convert 3']],...		'position',[280,122,310,158])add_block('built-in/Note',[sys,'/','Tin'])set_param([sys,'/','Tin'],...		'position',[430,165,431,166])add_block('built-in/Constant',[sys,'/',['Avg Outdoor',13,'Temp']])set_param([sys,'/',['Avg Outdoor',13,'Temp']],...		'Value','50',...		'position',[165,120,185,140])add_block('built-in/Sum',[sys,'/','Sum1'])set_param([sys,'/','Sum1'],...		'position',[230,120,250,155])add_block('built-in/Sum',[sys,'/','Sum'])set_param([sys,'/','Sum'],...		'inputs','+-',...		'position',[135,50,155,85])add_block('built-in/Note',[sys,'/','Tout'])set_param([sys,'/','Tout'],...		'position',[345,120,346,121])%     Subsystem  'House'.new_system([sys,'/','House'])set_param([sys,'/','House'],'Location',[236,224,620,460])add_block('built-in/Integrator',[sys,'/','House/Integrator'])set_param([sys,'/','House/Integrator'],...		'Initial','TinIC',...		'position',[220,35,240,55])add_block('built-in/Gain',[sys,'/','House/1//Req'])set_param([sys,'/','House/1//Req'],...		'orientation',2,...		'Gain','1/Req',...		'position',[95,115,125,145])add_block('built-in/Sum',[sys,'/','House/Sum2'])set_param([sys,'/','House/Sum2'],...		'orientation',2,...		'inputs','-+',...		'position',[155,114,175,141])add_block('built-in/Gain',[sys,'/','House/1//Mc'])set_param([sys,'/','House/1//Mc'],...		'Gain','1/(M*c)',...		'position',[160,27,190,63])add_block('built-in/Sum',[sys,'/','House/Sum1'])set_param([sys,'/','House/Sum1'],...		'position',[110,27,130,58])add_block('built-in/Inport',[sys,'/',['House/Heater',13,'QDot',13,'In']])set_param([sys,'/',['House/Heater',13,'QDot',13,'In']],...		'position',[45,25,65,45])add_block('built-in/Outport',[sys,'/',['House/Indoor Temp',13,'Tin']])set_param([sys,'/',['House/Indoor Temp',13,'Tin']],...		'position',[305,35,325,55])add_block('built-in/Inport',[sys,'/',['House/Outdoor Temp',13,'Tout']])set_param([sys,'/',['House/Outdoor Temp',13,'Tout']],...		'Port','2',...		'position',[50,160,70,180])add_block('built-in/Note',[sys,'/',['House/Thermodynamic Model',13,'for the House']])set_param([sys,'/',['House/Thermodynamic Model',13,'for the House']],...		'position',[290,145,291,146])add_line([sys,'/','House'],[245,45;295,45])add_line([sys,'/','House'],[270,45;270,120;185,120])add_line([sys,'/','House'],[195,45;210,45])add_line([sys,'/','House'],[90,130;85,130;85,50;100,50])add_line([sys,'/','House'],[150,130;135,130])add_line([sys,'/','House'],[135,45;150,45])add_line([sys,'/','House'],[70,35;100,35])add_line([sys,'/','House'],[75,170;210,170;210,135;185,135])set_param([sys,'/','House'],...		'Mask Display','plot(0,0,100,100,[20,80,80,20,20],[20,20,70,70,20],[15,50,85,15],[70,90,70,70],[42,42,29,29],[20,44,44,20],[52,68,68,52,52],[55,55,44,44,55])')%     Finished composite block 'House'.set_param([sys,'/','House'],...		'Drop Shadow',4,...		'position',[350,59,400,106])add_block('built-in/Gain',[sys,'/',['Heater ',13,'Blower']])set_param([sys,'/',['Heater ',13,'Blower']],...		'Gain','Mdot*ha',...		'position',[275,60,295,80])add_block('built-in/Note',[sys,'/','Terr'])set_param([sys,'/','Terr'],...		'position',[170,75,171,76])%     Subsystem  'Fuzzy Controller'.new_system([sys,'/','Fuzzy Controller'])set_param([sys,'/','Fuzzy Controller'],'Location',[4,42,628,468])add_block('built-in/Gain',[sys,'/','Fuzzy Controller/Gain1'])set_param([sys,'/','Fuzzy Controller/Gain1'],...		'Gain','9/25',...		'position',[230,150,250,170])add_block('built-in/Inport',[sys,'/','Fuzzy Controller/Terr'])set_param([sys,'/','Fuzzy Controller/Terr'],...		'position',[25,150,45,170])add_block('built-in/Unit Delay',[sys,'/','Fuzzy Controller/Unit Delay'])set_param([sys,'/','Fuzzy Controller/Unit Delay'],...		'Sample time','0.5',...		'position',[75,87,125,103])add_block('built-in/Sum',[sys,'/','Fuzzy Controller/Sum'])set_param([sys,'/','Fuzzy Controller/Sum'],...		'inputs','-+',...		'position',[165,89,185,116])add_block('built-in/Gain',[sys,'/','Fuzzy Controller/Gain'])set_param([sys,'/','Fuzzy Controller/Gain'],...		'Gain','9/50',...		'position',[230,95,250,115])%     Subsystem  'Fuzzy Controller/2-D Table Lookup'.new_system([sys,'/','Fuzzy Controller/2-D Table Lookup'])set_param([sys,'/','Fuzzy Controller/2-D Table Lookup'],'Location',[316,263,598,417])add_block('built-in/Inport',[sys,'/','Fuzzy Controller/2-D Table Lookup/y0'])set_param([sys,'/','Fuzzy Controller/2-D Table Lookup/y0'],...		'Port','2',...		'position',[20,80,40,100])add_block('built-in/Outport',[sys,'/','Fuzzy Controller/2-D Table Lookup/table out'])set_param([sys,'/','Fuzzy Controller/2-D Table Lookup/table out'],...		'position',[215,55,235,75])add_block('built-in/Inport',[sys,'/','Fuzzy Controller/2-D Table Lookup/x0'])set_param([sys,'/','Fuzzy Controller/2-D Table Lookup/x0'],...