Generated Code
The following is matlab code generated by the CellML API from this CellML file. (Back to language selection)
The raw code is available.
function [VOI, STATES, ALGEBRAIC, CONSTANTS] = mainFunction()
% This is the "main function". In Matlab, things work best if you rename this function to match the filename.
[VOI, STATES, ALGEBRAIC, CONSTANTS] = solveModel();
end
function [algebraicVariableCount] = getAlgebraicVariableCount()
% Used later when setting a global variable with the number of algebraic variables.
% Note: This is not the "main method".
algebraicVariableCount =25;
end
% There are a total of 8 entries in each of the rate and state variable arrays.
% There are a total of 24 entries in the constant variable array.
%
function [VOI, STATES, ALGEBRAIC, CONSTANTS] = solveModel()
% Create ALGEBRAIC of correct size
global algebraicVariableCount; algebraicVariableCount = getAlgebraicVariableCount();
% Initialise constants and state variables
[INIT_STATES, CONSTANTS] = initConsts;
% Set timespan to solve over
tspan = [0, 10];
% Set numerical accuracy options for ODE solver
options = odeset('RelTol', 1e-06, 'AbsTol', 1e-06, 'MaxStep', 1);
% Solve model with ODE solver
[VOI, STATES] = ode15s(@(VOI, STATES)computeRates(VOI, STATES, CONSTANTS), tspan, INIT_STATES, options);
% Compute algebraic variables
[RATES, ALGEBRAIC] = computeRates(VOI, STATES, CONSTANTS);
ALGEBRAIC = computeAlgebraic(ALGEBRAIC, CONSTANTS, STATES, VOI);
% Plot state variables against variable of integration
[LEGEND_STATES, LEGEND_ALGEBRAIC, LEGEND_VOI, LEGEND_CONSTANTS] = createLegends();
figure();
plot(VOI, STATES);
xlabel(LEGEND_VOI);
l = legend(LEGEND_STATES);
set(l,'Interpreter','none');
end
function [LEGEND_STATES, LEGEND_ALGEBRAIC, LEGEND_VOI, LEGEND_CONSTANTS] = createLegends()
LEGEND_STATES = ''; LEGEND_ALGEBRAIC = ''; LEGEND_VOI = ''; LEGEND_CONSTANTS = '';
LEGEND_VOI = strpad('time in component environment (millisecond)');
LEGEND_STATES(:,1) = strpad('V in component membrane (millivolt)');
LEGEND_CONSTANTS(:,1) = strpad('R in component membrane (joule_per_kilomole_kelvin)');
LEGEND_CONSTANTS(:,2) = strpad('T in component membrane (kelvin)');
LEGEND_CONSTANTS(:,3) = strpad('F in component membrane (coulomb_per_mole)');
LEGEND_CONSTANTS(:,4) = strpad('C in component membrane (microF_per_cm2)');
LEGEND_ALGEBRAIC(:,1) = strpad('I_stim in component membrane (microA_per_cm2)');
LEGEND_ALGEBRAIC(:,8) = strpad('i_Na in component fast_sodium_current (microA_per_cm2)');
LEGEND_ALGEBRAIC(:,16) = strpad('i_si in component slow_inward_current (microA_per_cm2)');
LEGEND_ALGEBRAIC(:,18) = strpad('i_K in component time_dependent_potassium_current (microA_per_cm2)');
LEGEND_ALGEBRAIC(:,22) = strpad('i_K1 in component time_independent_potassium_current (microA_per_cm2)');
LEGEND_ALGEBRAIC(:,24) = strpad('i_Kp in component plateau_potassium_current (microA_per_cm2)');
LEGEND_ALGEBRAIC(:,25) = strpad('i_b in component background_current (microA_per_cm2)');
LEGEND_CONSTANTS(:,5) = strpad('stim_start in component membrane (millisecond)');
LEGEND_CONSTANTS(:,6) = strpad('stim_end in component membrane (millisecond)');
LEGEND_CONSTANTS(:,7) = strpad('stim_period in component membrane (millisecond)');
LEGEND_CONSTANTS(:,8) = strpad('stim_duration in component membrane (millisecond)');
LEGEND_CONSTANTS(:,9) = strpad('stim_amplitude in component membrane (microA_per_cm2)');
LEGEND_CONSTANTS(:,10) = strpad('g_Na in component fast_sodium_current (milliS_per_cm2)');
LEGEND_CONSTANTS(:,19) = strpad('E_Na in component fast_sodium_current (millivolt)');
LEGEND_CONSTANTS(:,11) = strpad('Nao in component ionic_concentrations (millimolar)');
LEGEND_CONSTANTS(:,12) = strpad('Nai in component ionic_concentrations (millimolar)');
LEGEND_STATES(:,2) = strpad('m in component fast_sodium_current_m_gate (dimensionless)');
LEGEND_STATES(:,3) = strpad('h in component fast_sodium_current_h_gate (dimensionless)');
LEGEND_STATES(:,4) = strpad('j in component fast_sodium_current_j_gate (dimensionless)');
LEGEND_ALGEBRAIC(:,2) = strpad('alpha_m in component fast_sodium_current_m_gate (per_millisecond)');
LEGEND_ALGEBRAIC(:,9) = strpad('beta_m in component fast_sodium_current_m_gate (per_millisecond)');
LEGEND_ALGEBRAIC(:,3) = strpad('alpha_h in component fast_sodium_current_h_gate (per_millisecond)');
LEGEND_ALGEBRAIC(:,10) = strpad('beta_h in component fast_sodium_current_h_gate (per_millisecond)');
LEGEND_ALGEBRAIC(:,4) = strpad('alpha_j in component fast_sodium_current_j_gate (per_millisecond)');
LEGEND_ALGEBRAIC(:,11) = strpad('beta_j in component fast_sodium_current_j_gate (per_millisecond)');
LEGEND_ALGEBRAIC(:,15) = strpad('E_si in component slow_inward_current (millivolt)');
LEGEND_STATES(:,5) = strpad('Cai in component intracellular_calcium_concentration (millimolar)');
LEGEND_STATES(:,6) = strpad('d in component slow_inward_current_d_gate (dimensionless)');
LEGEND_STATES(:,7) = strpad('f in component slow_inward_current_f_gate (dimensionless)');
LEGEND_ALGEBRAIC(:,5) = strpad('alpha_d in component slow_inward_current_d_gate (per_millisecond)');
LEGEND_ALGEBRAIC(:,12) = strpad('beta_d in component slow_inward_current_d_gate (per_millisecond)');
LEGEND_ALGEBRAIC(:,6) = strpad('alpha_f in component slow_inward_current_f_gate (per_millisecond)');
LEGEND_ALGEBRAIC(:,13) = strpad('beta_f in component slow_inward_current_f_gate (per_millisecond)');
LEGEND_CONSTANTS(:,20) = strpad('g_K in component time_dependent_potassium_current (milliS_per_cm2)');
LEGEND_CONSTANTS(:,21) = strpad('E_K in component time_dependent_potassium_current (millivolt)');
LEGEND_CONSTANTS(:,13) = strpad('PR_NaK in component time_dependent_potassium_current (dimensionless)');
LEGEND_CONSTANTS(:,14) = strpad('Ko in component ionic_concentrations (millimolar)');
LEGEND_CONSTANTS(:,15) = strpad('Ki in component ionic_concentrations (millimolar)');
LEGEND_STATES(:,8) = strpad('X in component time_dependent_potassium_current_X_gate (dimensionless)');
LEGEND_ALGEBRAIC(:,17) = strpad('Xi in component time_dependent_potassium_current_Xi_gate (dimensionless)');
LEGEND_ALGEBRAIC(:,7) = strpad('alpha_X in component time_dependent_potassium_current_X_gate (per_millisecond)');
LEGEND_ALGEBRAIC(:,14) = strpad('beta_X in component time_dependent_potassium_current_X_gate (per_millisecond)');
LEGEND_CONSTANTS(:,22) = strpad('E_K1 in component time_independent_potassium_current (millivolt)');
LEGEND_CONSTANTS(:,23) = strpad('g_K1 in component time_independent_potassium_current (milliS_per_cm2)');
LEGEND_ALGEBRAIC(:,21) = strpad('K1_infinity in component time_independent_potassium_current_K1_gate (dimensionless)');
LEGEND_ALGEBRAIC(:,19) = strpad('alpha_K1 in component time_independent_potassium_current_K1_gate (per_millisecond)');
LEGEND_ALGEBRAIC(:,20) = strpad('beta_K1 in component time_independent_potassium_current_K1_gate (per_millisecond)');
LEGEND_CONSTANTS(:,24) = strpad('E_Kp in component plateau_potassium_current (millivolt)');
LEGEND_CONSTANTS(:,16) = strpad('g_Kp in component plateau_potassium_current (milliS_per_cm2)');
LEGEND_ALGEBRAIC(:,23) = strpad('Kp in component plateau_potassium_current (dimensionless)');
LEGEND_CONSTANTS(:,17) = strpad('E_b in component background_current (millivolt)');
LEGEND_CONSTANTS(:,18) = strpad('g_b in component background_current (milliS_per_cm2)');
LEGEND_RATES(:,1) = strpad('d/dt V in component membrane (millivolt)');
LEGEND_RATES(:,2) = strpad('d/dt m in component fast_sodium_current_m_gate (dimensionless)');
LEGEND_RATES(:,3) = strpad('d/dt h in component fast_sodium_current_h_gate (dimensionless)');
LEGEND_RATES(:,4) = strpad('d/dt j in component fast_sodium_current_j_gate (dimensionless)');
LEGEND_RATES(:,6) = strpad('d/dt d in component slow_inward_current_d_gate (dimensionless)');
LEGEND_RATES(:,7) = strpad('d/dt f in component slow_inward_current_f_gate (dimensionless)');
LEGEND_RATES(:,8) = strpad('d/dt X in component time_dependent_potassium_current_X_gate (dimensionless)');
LEGEND_RATES(:,5) = strpad('d/dt Cai in component intracellular_calcium_concentration (millimolar)');
LEGEND_STATES = LEGEND_STATES';
LEGEND_ALGEBRAIC = LEGEND_ALGEBRAIC';
LEGEND_RATES = LEGEND_RATES';
LEGEND_CONSTANTS = LEGEND_CONSTANTS';
end
function [STATES, CONSTANTS] = initConsts()
VOI = 0; CONSTANTS = []; STATES = []; ALGEBRAIC = [];
STATES(:,1) = -84.3801107371;
CONSTANTS(:,1) = 8314;
CONSTANTS(:,2) = 310;
CONSTANTS(:,3) = 96484.6;
CONSTANTS(:,4) = 1;
CONSTANTS(:,5) = 100;
CONSTANTS(:,6) = 9000;
CONSTANTS(:,7) = 1000;
CONSTANTS(:,8) = 2;
CONSTANTS(:,9) = -25.5;
CONSTANTS(:,10) = 23;
CONSTANTS(:,11) = 140;
CONSTANTS(:,12) = 18;
STATES(:,2) = 0.00171338077730188;
STATES(:,3) = 0.982660523699656;
STATES(:,4) = 0.989108212766685;
STATES(:,5) = 0.00017948816388306;
STATES(:,6) = 0.00302126301779861;
STATES(:,7) = 0.999967936476325;
CONSTANTS(:,13) = 0.01833;
CONSTANTS(:,14) = 5.4;
CONSTANTS(:,15) = 145;
STATES(:,8) = 0.0417603108167287;
CONSTANTS(:,16) = 0.0183;
CONSTANTS(:,17) = -59.87;
CONSTANTS(:,18) = 0.03921;
CONSTANTS(:,19) = (( CONSTANTS(:,1).*CONSTANTS(:,2))./CONSTANTS(:,3)).*log(CONSTANTS(:,11)./CONSTANTS(:,12));
CONSTANTS(:,20) = 0.282000.*power((CONSTANTS(:,14)./5.40000), 1.0 ./ 2);
CONSTANTS(:,21) = (( CONSTANTS(:,1).*CONSTANTS(:,2))./CONSTANTS(:,3)).*log((CONSTANTS(:,14)+ CONSTANTS(:,13).*CONSTANTS(:,11))./(CONSTANTS(:,15)+ CONSTANTS(:,13).*CONSTANTS(:,12)));
CONSTANTS(:,22) = (( CONSTANTS(:,1).*CONSTANTS(:,2))./CONSTANTS(:,3)).*log(CONSTANTS(:,14)./CONSTANTS(:,15));
CONSTANTS(:,23) = 0.604700.*power((CONSTANTS(:,14)./5.40000), 1.0 ./ 2);
CONSTANTS(:,24) = CONSTANTS(:,22);
if (isempty(STATES)), warning('Initial values for states not set');, end
end
function [RATES, ALGEBRAIC] = computeRates(VOI, STATES, CONSTANTS)
global algebraicVariableCount;
statesSize = size(STATES);
statesColumnCount = statesSize(2);
if ( statesColumnCount == 1)
STATES = STATES';
ALGEBRAIC = zeros(1, algebraicVariableCount);
utilOnes = 1;
else
statesRowCount = statesSize(1);
ALGEBRAIC = zeros(statesRowCount, algebraicVariableCount);
RATES = zeros(statesRowCount, statesColumnCount);
utilOnes = ones(statesRowCount, 1);
end
ALGEBRAIC(:,2) = ( 0.320000.*(STATES(:,1)+47.1300))./(1.00000 - exp( - 0.100000.*(STATES(:,1)+47.1300)));
ALGEBRAIC(:,9) = 0.0800000.*exp( - STATES(:,1)./11.0000);
RATES(:,2) = ALGEBRAIC(:,2).*(1.00000 - STATES(:,2)) - ALGEBRAIC(:,9).*STATES(:,2);
ALGEBRAIC(:,3) = piecewise({STATES(:,1)< - 40.0000, 0.135000.*exp((80.0000+STATES(:,1))./ - 6.80000) }, 0.00000);
ALGEBRAIC(:,10) = piecewise({STATES(:,1)< - 40.0000, 3.56000.*exp( 0.0790000.*STATES(:,1))+ 310000..*exp( 0.350000.*STATES(:,1)) }, 1.00000./( 0.130000.*(1.00000+exp((STATES(:,1)+10.6600)./ - 11.1000))));
RATES(:,3) = ALGEBRAIC(:,3).*(1.00000 - STATES(:,3)) - ALGEBRAIC(:,10).*STATES(:,3);
ALGEBRAIC(:,4) = piecewise({STATES(:,1)< - 40.0000, ( ( - 127140..*exp( 0.244400.*STATES(:,1)) - 3.47400e-05.*exp( - 0.0439100.*STATES(:,1))).*(STATES(:,1)+37.7800))./(1.00000+exp( 0.311000.*(STATES(:,1)+79.2300))) }, 0.00000);
ALGEBRAIC(:,11) = piecewise({STATES(:,1)< - 40.0000, ( 0.121200.*exp( - 0.0105200.*STATES(:,1)))./(1.00000+exp( - 0.137800.*(STATES(:,1)+40.1400))) }, ( 0.300000.*exp( - 2.53500e-07.*STATES(:,1)))./(1.00000+exp( - 0.100000.*(STATES(:,1)+32.0000))));
RATES(:,4) = ALGEBRAIC(:,4).*(1.00000 - STATES(:,4)) - ALGEBRAIC(:,11).*STATES(:,4);
ALGEBRAIC(:,5) = ( 0.0950000.*exp( - 0.0100000.*(STATES(:,1) - 5.00000)))./(1.00000+exp( - 0.0720000.*(STATES(:,1) - 5.00000)));
ALGEBRAIC(:,12) = ( 0.0700000.*exp( - 0.0170000.*(STATES(:,1)+44.0000)))./(1.00000+exp( 0.0500000.*(STATES(:,1)+44.0000)));
RATES(:,6) = ALGEBRAIC(:,5).*(1.00000 - STATES(:,6)) - ALGEBRAIC(:,12).*STATES(:,6);
ALGEBRAIC(:,6) = ( 0.0120000.*exp( - 0.00800000.*(STATES(:,1)+28.0000)))./(1.00000+exp( 0.150000.*(STATES(:,1)+28.0000)));
ALGEBRAIC(:,13) = ( 0.00650000.*exp( - 0.0200000.*(STATES(:,1)+30.0000)))./(1.00000+exp( - 0.200000.*(STATES(:,1)+30.0000)));
RATES(:,7) = ALGEBRAIC(:,6).*(1.00000 - STATES(:,7)) - ALGEBRAIC(:,13).*STATES(:,7);
ALGEBRAIC(:,7) = ( 0.000500000.*exp( 0.0830000.*(STATES(:,1)+50.0000)))./(1.00000+exp( 0.0570000.*(STATES(:,1)+50.0000)));
ALGEBRAIC(:,14) = ( 0.00130000.*exp( - 0.0600000.*(STATES(:,1)+20.0000)))./(1.00000+exp( - 0.0400000.*(STATES(:,1)+20.0000)));
RATES(:,8) = ALGEBRAIC(:,7).*(1.00000 - STATES(:,8)) - ALGEBRAIC(:,14).*STATES(:,8);
ALGEBRAIC(:,15) = 7.70000 - 13.0287.*log(STATES(:,5)./1.00000);
ALGEBRAIC(:,16) = 0.0900000.*STATES(:,6).*STATES(:,7).*(STATES(:,1) - ALGEBRAIC(:,15));
RATES(:,5) = ( - 0.000100000./1.00000).*ALGEBRAIC(:,16)+ 0.0700000.*(0.000100000 - STATES(:,5));
ALGEBRAIC(:,1) = piecewise({VOI>=CONSTANTS(:,5)&VOI<=CONSTANTS(:,6)&(VOI - CONSTANTS(:,5)) - floor((VOI - CONSTANTS(:,5))./CONSTANTS(:,7)).*CONSTANTS(:,7)<=CONSTANTS(:,8), CONSTANTS(:,9) }, 0.00000);
ALGEBRAIC(:,8) = CONSTANTS(:,10).*power(STATES(:,2), 3.00000).*STATES(:,3).*STATES(:,4).*(STATES(:,1) - CONSTANTS(:,19));
ALGEBRAIC(:,17) = piecewise({STATES(:,1)> - 100.000, ( 2.83700.*(exp( 0.0400000.*(STATES(:,1)+77.0000)) - 1.00000))./( (STATES(:,1)+77.0000).*exp( 0.0400000.*(STATES(:,1)+35.0000))) }, 1.00000);
ALGEBRAIC(:,18) = CONSTANTS(:,20).*STATES(:,8).*ALGEBRAIC(:,17).*(STATES(:,1) - CONSTANTS(:,21));
ALGEBRAIC(:,19) = 1.02000./(1.00000+exp( 0.238500.*((STATES(:,1) - CONSTANTS(:,22)) - 59.2150)));
ALGEBRAIC(:,20) = ( 0.491240.*exp( 0.0803200.*((STATES(:,1)+5.47600) - CONSTANTS(:,22)))+ 1.00000.*exp( 0.0617500.*(STATES(:,1) - (CONSTANTS(:,22)+594.310))))./(1.00000+exp( - 0.514300.*((STATES(:,1) - CONSTANTS(:,22))+4.75300)));
ALGEBRAIC(:,21) = ALGEBRAIC(:,19)./(ALGEBRAIC(:,19)+ALGEBRAIC(:,20));
ALGEBRAIC(:,22) = CONSTANTS(:,23).*ALGEBRAIC(:,21).*(STATES(:,1) - CONSTANTS(:,22));
ALGEBRAIC(:,23) = 1.00000./(1.00000+exp((7.48800 - STATES(:,1))./5.98000));
ALGEBRAIC(:,24) = CONSTANTS(:,16).*ALGEBRAIC(:,23).*(STATES(:,1) - CONSTANTS(:,24));
ALGEBRAIC(:,25) = CONSTANTS(:,18).*(STATES(:,1) - CONSTANTS(:,17));
RATES(:,1) = ( - 1.00000./CONSTANTS(:,4)).*(ALGEBRAIC(:,1)+ALGEBRAIC(:,8)+ALGEBRAIC(:,16)+ALGEBRAIC(:,18)+ALGEBRAIC(:,22)+ALGEBRAIC(:,24)+ALGEBRAIC(:,25));
RATES = RATES';
end
% Calculate algebraic variables
function ALGEBRAIC = computeAlgebraic(ALGEBRAIC, CONSTANTS, STATES, VOI)
statesSize = size(STATES);
statesColumnCount = statesSize(2);
if ( statesColumnCount == 1)
STATES = STATES';
utilOnes = 1;
else
statesRowCount = statesSize(1);
utilOnes = ones(statesRowCount, 1);
end
ALGEBRAIC(:,2) = ( 0.320000.*(STATES(:,1)+47.1300))./(1.00000 - exp( - 0.100000.*(STATES(:,1)+47.1300)));
ALGEBRAIC(:,9) = 0.0800000.*exp( - STATES(:,1)./11.0000);
ALGEBRAIC(:,3) = piecewise({STATES(:,1)< - 40.0000, 0.135000.*exp((80.0000+STATES(:,1))./ - 6.80000) }, 0.00000);
ALGEBRAIC(:,10) = piecewise({STATES(:,1)< - 40.0000, 3.56000.*exp( 0.0790000.*STATES(:,1))+ 310000..*exp( 0.350000.*STATES(:,1)) }, 1.00000./( 0.130000.*(1.00000+exp((STATES(:,1)+10.6600)./ - 11.1000))));
ALGEBRAIC(:,4) = piecewise({STATES(:,1)< - 40.0000, ( ( - 127140..*exp( 0.244400.*STATES(:,1)) - 3.47400e-05.*exp( - 0.0439100.*STATES(:,1))).*(STATES(:,1)+37.7800))./(1.00000+exp( 0.311000.*(STATES(:,1)+79.2300))) }, 0.00000);
ALGEBRAIC(:,11) = piecewise({STATES(:,1)< - 40.0000, ( 0.121200.*exp( - 0.0105200.*STATES(:,1)))./(1.00000+exp( - 0.137800.*(STATES(:,1)+40.1400))) }, ( 0.300000.*exp( - 2.53500e-07.*STATES(:,1)))./(1.00000+exp( - 0.100000.*(STATES(:,1)+32.0000))));
ALGEBRAIC(:,5) = ( 0.0950000.*exp( - 0.0100000.*(STATES(:,1) - 5.00000)))./(1.00000+exp( - 0.0720000.*(STATES(:,1) - 5.00000)));
ALGEBRAIC(:,12) = ( 0.0700000.*exp( - 0.0170000.*(STATES(:,1)+44.0000)))./(1.00000+exp( 0.0500000.*(STATES(:,1)+44.0000)));
ALGEBRAIC(:,6) = ( 0.0120000.*exp( - 0.00800000.*(STATES(:,1)+28.0000)))./(1.00000+exp( 0.150000.*(STATES(:,1)+28.0000)));
ALGEBRAIC(:,13) = ( 0.00650000.*exp( - 0.0200000.*(STATES(:,1)+30.0000)))./(1.00000+exp( - 0.200000.*(STATES(:,1)+30.0000)));
ALGEBRAIC(:,7) = ( 0.000500000.*exp( 0.0830000.*(STATES(:,1)+50.0000)))./(1.00000+exp( 0.0570000.*(STATES(:,1)+50.0000)));
ALGEBRAIC(:,14) = ( 0.00130000.*exp( - 0.0600000.*(STATES(:,1)+20.0000)))./(1.00000+exp( - 0.0400000.*(STATES(:,1)+20.0000)));
ALGEBRAIC(:,15) = 7.70000 - 13.0287.*log(STATES(:,5)./1.00000);
ALGEBRAIC(:,16) = 0.0900000.*STATES(:,6).*STATES(:,7).*(STATES(:,1) - ALGEBRAIC(:,15));
ALGEBRAIC(:,1) = piecewise({VOI>=CONSTANTS(:,5)&VOI<=CONSTANTS(:,6)&(VOI - CONSTANTS(:,5)) - floor((VOI - CONSTANTS(:,5))./CONSTANTS(:,7)).*CONSTANTS(:,7)<=CONSTANTS(:,8), CONSTANTS(:,9) }, 0.00000);
ALGEBRAIC(:,8) = CONSTANTS(:,10).*power(STATES(:,2), 3.00000).*STATES(:,3).*STATES(:,4).*(STATES(:,1) - CONSTANTS(:,19));
ALGEBRAIC(:,17) = piecewise({STATES(:,1)> - 100.000, ( 2.83700.*(exp( 0.0400000.*(STATES(:,1)+77.0000)) - 1.00000))./( (STATES(:,1)+77.0000).*exp( 0.0400000.*(STATES(:,1)+35.0000))) }, 1.00000);
ALGEBRAIC(:,18) = CONSTANTS(:,20).*STATES(:,8).*ALGEBRAIC(:,17).*(STATES(:,1) - CONSTANTS(:,21));
ALGEBRAIC(:,19) = 1.02000./(1.00000+exp( 0.238500.*((STATES(:,1) - CONSTANTS(:,22)) - 59.2150)));
ALGEBRAIC(:,20) = ( 0.491240.*exp( 0.0803200.*((STATES(:,1)+5.47600) - CONSTANTS(:,22)))+ 1.00000.*exp( 0.0617500.*(STATES(:,1) - (CONSTANTS(:,22)+594.310))))./(1.00000+exp( - 0.514300.*((STATES(:,1) - CONSTANTS(:,22))+4.75300)));
ALGEBRAIC(:,21) = ALGEBRAIC(:,19)./(ALGEBRAIC(:,19)+ALGEBRAIC(:,20));
ALGEBRAIC(:,22) = CONSTANTS(:,23).*ALGEBRAIC(:,21).*(STATES(:,1) - CONSTANTS(:,22));
ALGEBRAIC(:,23) = 1.00000./(1.00000+exp((7.48800 - STATES(:,1))./5.98000));
ALGEBRAIC(:,24) = CONSTANTS(:,16).*ALGEBRAIC(:,23).*(STATES(:,1) - CONSTANTS(:,24));
ALGEBRAIC(:,25) = CONSTANTS(:,18).*(STATES(:,1) - CONSTANTS(:,17));
end
% Compute result of a piecewise function
function x = piecewise(cases, default)
set = [0];
for i = 1:2:length(cases)
if (length(cases{i+1}) == 1)
x(cases{i} & ~set,:) = cases{i+1};
else
x(cases{i} & ~set,:) = cases{i+1}(cases{i} & ~set);
end
set = set | cases{i};
if(set), break, end
end
if (length(default) == 1)
x(~set,:) = default;
else
x(~set,:) = default(~set);
end
end
% Pad out or shorten strings to a set length
function strout = strpad(strin)
req_length = 160;
insize = size(strin,2);
if insize > req_length
strout = strin(1:req_length);
else
strout = [strin, blanks(req_length - insize)];
end
end