Adding elements by elements

Hi to all, Attach please find the code for correction

Initial values are given. Random values of dtheta are generated I want to add theta + dtheta so that if the first value of dtheta is added to theta = 0 (it is the initial value), it should check if the value is greater than zero it should accept otherwise reject. In the next step it should save the new value of theta_new in theta and then take the next value of dtheta......... if sum of theta+dtheta is greater then the new value of theta it should accept otherwise it should reject the value and so on........ I want to calculate it for 10 values of B. when 10 values for theta are obtained reject the remaining dtheta and show the accepted values. I hope I have explained satisfactorily.

Answer 1

[Sebastian Castro]

So... what is the question? Your code runs fine. You should really describe your problem instead of asking everyone to "please correct it". Just a tip for future questions, if you would like people to answer them :)

Now, here is my best attempt. I'm guessing you want to keep track of your variable theta over time? If so, you should have theta be a vector instead of a scalar, like so:

theta = zeros(1,B_steps + 1) % angle between magnetization and magnetic field

for i = 1:B_steps
  for j = 1:theta_nmc
    if dtheta(j) > 0
      theta(j+1) = theta(j) + dtheta(j)
    else
      theta(j+1) = theta(j) % it should be equal to previous theta
    end        
  end
end 

plot(theta)

There are probably ways to do this without one or both for-loops altogether, but this is a start.

- Sebastian

[Offroad Jeep]

Ok thanks for advice. actually for every value of B (magnetic field) I want to get the value of theta. Random values for theta are generated. Actually I have 10 values of B for each B i want a value of new theta and when ten values are completed it should terminated. although I have generated 50 random values for dtheta which are negative as well as positive. RAZ