Holy fuck.

It's come to this point. I've been trying to create a program in MATLAB for hours now that will calculate Fibonacci's sequence to 20 numbers (I'm just going with nterms=input('Number of terms.')
But anyway...I'm fucked. I have class at 1:35, not to mention a lab report for this class that I've yet to finish. Plus a shitton of other programming also due. Any help at this ungodly hour would be really appreciated.
Btw, this is what I have so far:

x=0;
nterms=input('Enter the number of Fibonacci numbers to display: ');
if nterms<=0
    disp('Error: Input must be a positive integer.')
end
for f=(1:nterms)
    while x<=nterms
    f(1)=0;
    f(2)=1;
    if nterms<2&&nterms>0
    disp(f(1))
    end
    if nterms>1&&nterms<3
        disp(f(1:2))
    end
    x=3;
    f(x)=f(x-2)+f(x-1);
    x=x+1;
    end
end
disp(f)

Wow! There are a lot of shitty things in that code. Just look at the algorithm on wikipedia and implement it. It's not difficult.

F(1) is 0
F(2) is 1
F(n) is F(n-2) + F(n-1) 

function fibo(n)
   if(n<0)
     return -1
   else if(n==1)
     return 0
   else if(n==2)
     return 1
   else
    //complete this part on your own
   endif
end