Getting the error. "index exceeds the number of array elements".

a =2;
ndiv = 100;
x = linspace(0,1,ndiv);
dx = x(2)-x(1);

for i = 2: (ndiv-1)
    h(i) = a - (a-1)*x(i);

    dh = (h(i+1)-h(i-1))/(2*dx);
end

Index exceeds the number of array elements. Index must not exceed 2.

Answer 1

[Steven Lord]

When i is 2, you assign to h(2) but then on the next line you attempt to access h(3). That element doesn't exist yet.

I suggest moving the second line of your loop to after the loop and removing its dependence on the loop variable.

x = (1:10).^2

x = 1×10

1 4 9 16 25 36 49 64 81 100

y = x(2:end)+x(1:end-1)

y = 1×9

5 13 25 41 61 85 113 145 181

Note that y has one fewer element than x does, so you'll need to handle the edges.

[AVINASH SAHU]

thank you