Solving Matlab Homework Problem - Index Out of Bounds Error

[gsb]

Homework Statement

hi, i am having some problem with a code in matlab. my code is:

t = 30;
H= 30;
h= 3;
n = H/h;
qqq= 10;
a= 3;
b = .2;
k= 0.04;
Lo= 100;
g= 9.81;

for i = 1:t
q(i) = 0;

for j = 1:n
nl = qqq + (j*h)/(a + b*(j*h));
nlt = nl*(0.0172*log(i) + 1);
q(i) = q(i) + 2*k*(Lo/100)*(nlt/3)*g*exp(-k*(i));

end

plot((1:t), q);

end

Homework Equations

this is the code and i keep getting this error- "Attempted to access q(2); index out of bounds because numel(q)=1."

help would be greatly appreciated.
thanks

The Attempt at a Solution

 

[jedishrfu]

Replace the lines:

for i=1:t; 
q(i)=0

with

q=zeros(1,t)

for i=1:t;
...

and use the [ code ] tags next time to make your code more readable

http://stackoverflow.com/questions/8000861/how-do-you-initialize-an-array-of-ninety-0s-in-matlab