Obtain and plot values of a "for" loop

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Alex T.
Alex T. le 16 Mai 2021
Commenté : Alex T. le 16 Mai 2021
Hello everyone! I am new to MATLAB and kinda unexperienced and i need your help for a script! I'm trying to obtain the values of y and y1 of the script bellow! In command window i receive the values but i can't plot them right or seing them as an array in workspace but only seperated. Can anyone please tell me where am i wrong? Thank you!
x=[0:0.1:1];
for i=0:0.1:1
y=2*(-88404*i*(1-i)*(6*(i-1)-4.1*i))/(12640.5*(1-i)+16860*((6-4.1)*i-6)*(-2)*(((4.1-6)*i)+6)+618272*(i^2))
x1=i;
y1=(-105258*i*(1-i))/(69126*i+101160*(1-i)-12640.5*(1-i))
end
plot (x,y,'o')

Réponse acceptée

David Fletcher
David Fletcher le 16 Mai 2021
you need to retain the values of y as you go through each iteration of the loop. There are a few ways of doing it, but perhaps the quick and dirty way in the context of your loop is:
x=[0:0.1:1];
y=[];
for i=0:0.1:1
y=[y 2*(-88404*i*(1-i)*(6*(i-1)-4.1*i))/(12640.5*(1-i)+16860*((6-4.1)*i-6)*(-2)*(((4.1-6)*i)+6)+618272*(i^2))]
x1=i;
y1=(-105258*i*(1-i))/(69126*i+101160*(1-i)-12640.5*(1-i))
end
plot (x,y,'o-')
  3 commentaires
David Fletcher
David Fletcher le 16 Mai 2021
Yes, you can use the same strategy for y1
Alex T.
Alex T. le 16 Mai 2021
Thank you very much David! Really appreciate it! Wish you all the best for the future!

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