why 'for' doesnt affect inner function?

hello Guys! im trying to have variable 'i' included in outside function called @witodefinicje. I wanna run ode for different 'i' inside @. The problem is that inside @ it stays the same. I have no clue whats wrong, please help

for i=0:50:200
   j=j+1;
   t = 0:0.01:20;
   X0 = zeros(12,1);
   X0(10,1) = -pi/2;
   X0(11,1) = pi/2;
   [t X] = ode45(@witodefinicje, t, X0);
   A(j,1)=max(X(600:1800,8));
   A(j,2)=i;
end

[Jan]

Today I've formatted the code for you. Please do this by your own in following questions. Thanks. See the "{} Code" button.

What is "an outside function"? What does "inside @" mean? What stay the same?

[Witold Sure]

thank you, Jan. An outside function is a function included in other file then one you see. Inside @witodefinicje, parameter 'i' does not change, even though 'for' should work. Or am I wrong?

Answer 1

[Jan]

A bold guess:

X0       = zeros(12,1);
X0(10,1) = -pi/2;
X0(11,1) = pi/2;
t = 0:0.01:20;
for i = 0:50:200
  [t, X] = ode45(@(t,x) witodefinicje(t, x, i), t, X0);
  j      = j + 1;
  A(j,1) = max(X(600:1800, 8));
  A(j,2) = i;
end

And in the function to be integrated:

function witodefinicje(t, x, i)
...

See http://www.mathworks.com/matlabcentral/answers/1971

[Witold Sure]

I suspected I've got to regard to fuction parameters, however I didn't know how to code it, due to too little experience. Thanks Jan, you're the man!