trouble using iterations and plotting

Got it thanks!

[Michael Haderlein]

In your code, there is no part where the function is evaluated. You just count t from 6.8 to 17.8. You need t as array:

t=linspace(6.8,17.9);

Then evaluate your function (just copy the function definition from your question). Plot as you did before. There's no need for a loop in this case.

[George Zimbodia]

Got it thanks!

[Star Strider]

Please don’t delete or erase the text of your original Question. Doing so eliminates the context others may need if they have the same problem and search MATLAB Answers for a solution.

Answer 1

[Star Strider]

‘The question is a practice problem from a professor. The question asks me to use for and/or while loops’

Using a while loop:

t = 6.8;
k = 1;      % Initialise Counter 
while (t >= 6.8 && t <= 17.9)
    f(k) = 3.98*t.*exp(52.65*(t-9.4));
    t = t +.1;
    tv(k) = t;
    k = k+1;
end
figure(89)
plot (tv,f)

You have to keep track of ‘t’ and ‘f’ as vectors regardless of using a while or for loop. There are several ways of using a for loop for this problem, so I’ll let you experiment with them, since this is homework.