Error: Index exceeds the number of array elements(1)

i=input('Enter і = ');
     a=0;
     b=0;
     z=0;
     A = [];
     for x=i:(i+8)
         cell (size(a)) = (a+(abs((sin(x.*2-1.5))^2+(3*sin(x)))+2.38));
         cell (size(b))= b+((cos(x))^2*sin(x.*2-1)+4.29);
         z=a*b;
         cell (size(a)) = a*b;
         A= [A, x, a(x), b(x), z];
     end
     disp(A)
    
      

Error in line 11 A= [A, x, a(x), b(x), z]; How I can solve this problem?

Answer 1

[Geoff Hayes]

Tatiana - the problem is that a is initialized as a scalar but it is treated as an array at the line

A= [A, x, a(x), b(x), z];  % <---- a(x) is an array 

This is true for b as well. So if they should be arrays, then where is the code to update them? Also, the lines

cell (size(a)) = (a+(abs((sin(x.*2-1.5))^2+(3*sin(x)))+2.38));
cell (size(b))= b+((cos(x))^2*sin(x.*2-1)+4.29);

will cause a variable named **cell* to be created. But this is also the name of the built-in MATLAB function cell. I strongly recommend that you rename this variable to something else so that it doesn't cause other bugs with your code.