MATLAB: Function with different parameters

different parametersplot

Hi everyone,
I am trying to vary the parameter e =[0.0001,0.0005,0.001,0.005,0.01] in my function and want to plot it in one figure. how can I do it?
Thank you!!
Hier is my code:
% Main program
s0=1;
c0=0;
t=linspace(0,10,100);
x0=[s0 c0];
[t,x]=ode45(@(t,x) num_lsg1(t,x), t, x0); 
plot(t,x(:,1),'-o',t, x(:,2),'-x')
xlabel('time [s]');
ylabel('Substrat, Complex');
legend('Substrat','Complex')
%%Function definition
function dx=num_lsg1(t,x) 
% Parameters
kme=0.625; 
e=0.001; 
kmm=1;
dx=zeros(2,1);
dx(1)=kme*x(2)-x(1)*(1-x(2));
dx(2) = (x(1)*(1-x(2))-kmm*x(2))/e;
end

Best Answer

Parameterize your function
s0=1;
c0=0;
t=linspace(0,10,100);
x0=[s0 c0];
for e =[0.0001,0.0005,0.001,0.005,0.01]
[t,x]=ode45(@(t,x) num_lsg1(t,x,e), t, x0);  % function call
figure
plot(t,x(:,1),'-o',t, x(:,2),'-x')
xlabel('time [s]');
ylabel('Substrat, Complex');
legend('Substrat','Complex')
end
%%Function definition
function dx=num_lsg1(t,x,e) 
% Parameters
kme=0.625; 
kmm=1;
dx=zeros(2,1);
dx(1)=kme*x(2)-x(1)*(1-x(2));
dx(2) = (x(1)*(1-x(2))-kmm*x(2))/e;
end
Note: If you dont want separate figures you can remove figure and put hold on after the plot command because if you plot them in the same figure all the plots look the same because e variation is so small,.
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