Using a previously calculated value in a for loop

I am attempting to calculate the volume over time of a basin of water given the inflow and outflow rates. With this, I am attempting to code a for loop that uses the previous calculated of the volume as the volume in the next iteration. The code I have written does not do this, it causes the loop to run continuously. the code I've attempted to make work is this: clear all; close all v=200; t=0:10;

for t<=240 vout=v+t.*(10-.1.*v) v=vout end

Any help would be greatly appreciated.

[Matt J]

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to put your code in a readable font.

[James]

    clear all; close all
v=200;
t=0:10;

for t<=240

vout=v+t.*(10-.1.*v)

v=vout

end

Answer 1

[Wayne King]

You have not written a valid MATLAB for loop. I'm not sure what you are trying to do because you create t as a vector and then don't index in the for loop. Then you try to test t <=240 but t never goes beyond 10. So I just have to guess at what you're trying to do with the for loop

 v = 200; 
 for t = 1:240
    vout(t) = v+t*(10-.1*v);
    v = vout(t);
 end