How do I declare a for loop with a given number of elements?

I have a for loop:

for j=0:0.03

..

end

I want j to run through 100 elements, in ascending order, between 0 and 0.03 (the value 0.03 is hypothetical). Can somebody help me, please?

Answer 1

[John D'Errico]

I'll only have a loop 5 elements long, as I'm feeling tired right now. :)

jvals = linspace(0,0.03,5);
for j = jvals
  disp(j)
end

     0

    0.0075

    0.0150

    0.0225

    0.0300

You should get the idea how to change it to 100.

Do NOT use j as a matrix index, since MATLAB does not allow non-integer indexes.

If you want a vector index also, then do this:

jvals = linspace(0,0.03,5);
for j = 1:numel(jvals)
  disp([j,jvals(j)])
end

     1     0

    2.0000    0.0075

    3.0000    0.0150

    4.0000    0.0225

    5.0000    0.0300

[Ana Carolina da Silva Pacheco]

Thank you so much!

Answer 2

[DGM]

consider using linspace()

for j = linspace(0,0.03,100)
    % do things
end