#
# This file is automatically generated with 
# the System Biology Format Converter (http://sbfc.sourceforge.net/)
# from an SBML file.
#
# The conversion system has the following limitations:
#  - You may have to re order some reactions and Assignment Rules definition
#  - Delays are not taken into account
#  - You should change the lsode parameters (start, end, steps) to get better results
#

#
# The following line is there to be sure that Octave think that this file 
# is a script and not function file
#
1;

#
# Model name = Meyer1991_CalciumSpike_ICC
#
# is urn:miriam:biomodels.db:BIOMD0000000224
# is urn:miriam:biomodels.db:MODEL9412103933
# isDescribedBy urn:miriam:pubmed:1867714
#
function z=pow(x,y),z=x^y;endfunction
function z=root(x,y),z=y^(1/x);endfunction
function z = piecewise(varargin)
	numArgs = nargin;
	result = 0;
	foundResult = 0;
	for k=1:2: numArgs-1
		if varargin{k+1} == 1
			result = varargin{k};
			foundResult = 1;
			break;
		endif
	end
	if foundResult == 0
		result = varargin{numArgs};
	endif
z = result;
endfunction

function xdot=f(x,t)
# Compartment: id = cytosol, name = cytosol, constant
	compartment_cytosol=1.0;
# Compartment: id = ER_store, name = ER_store, constant
	compartment_ER_store=1.0;
# Parameter:   id =  A, name = A
	global_par_A=20.0;
# Parameter:   id =  B, name = B
	global_par_B=40.0;
# Parameter:   id =  C, name = C
	global_par_C=1.1;
# Parameter:   id =  D, name = D
	global_par_D=2.0;
# Parameter:   id =  E, name = E
	global_par_E=1.0;
# Parameter:   id =  F, name = F
	global_par_F=0.02;
# Parameter:   id =  k1, name = k1
	global_par_k1=0.5;
# Parameter:   id =  k2, name = k2
	global_par_k2=0.15;
# Parameter:   id =  k3, name = k3
	global_par_k3=1.0;
# Parameter:   id =  L, name = L
	global_par_L=0.01;
# Parameter:   id =  R, name = R
	global_par_R=0.09;
# Reaction: id = JChannel


	reaction_JChannel=(1-x(4))*(global_par_A*(x(2)*0.5)^4/(x(2)*0.5+global_par_k1)^4+global_par_L)*x(3);
# Reaction: id = JPump


	reaction_JPump=global_par_B*(x(1)*0.01)^2/((x(1)*0.01)^2+global_par_k2^2);
# Reaction: id = kPLC


	reaction_kPLC=global_par_C*(1-global_par_k3/(x(1)*0.01+global_par_k3)*1/(1+global_par_R));
# Reaction: id = kPhosphatase


	reaction_kPhosphatase=global_par_D*x(2)*0.5;
# Reaction: id = inhibition_parameter1


	reaction_inhibition_parameter1=global_par_E*(x(1)*0.01)^4*(1-x(4));
# Reaction: id = inhibition_parameter2


	reaction_inhibition_parameter2=global_par_F;
	xdot=zeros(4,1);
	# Species:   id = CaI, name = CaI, affected by kineticLaw

	xdot(1) = (1/(compartment_cytosol))*(( 1.0 * reaction_JChannel) + (-1.0 * reaction_JPump));

	# Species:   id = IP3, name = IP3, affected by kineticLaw

	xdot(2) = (1/(compartment_cytosol))*(( 1.0 * reaction_kPLC) + (-1.0 * reaction_kPhosphatase));

	# Species:   id = CaS, name = CaS, affected by kineticLaw

	xdot(3) = (1/(compartment_ER_store))*((-1.0 * reaction_JChannel) + ( 1.0 * reaction_JPump));

	# Species:   id = g, name = g, affected by kineticLaw

	xdot(4) = (1/(compartment_cytosol))*(( 1.0 * reaction_inhibition_parameter1) + (-1.0 * reaction_inhibition_parameter2));

endfunction

#Initial conditions vector
x0=zeros(4,1);
x0(1) = 0.1;
x0(2) = 0.05;
x0(3) = 1100.0;
x0(4) = 0.0;


#Creating linespace
t=linspace(0,90,100);

#Solving equations
x=lsode("f",x0,t);

#ploting the results
plot(t,x);