Problem finding sum of array using vectorization

Trying to find the sum of this array using vectorization, the value of the sum should be 0.74 but when I run it I am getting 'ans = -Inf'. Where am I going wrong?

x = sym(1) ./ (1:9)

1 - sum( +1./((x)-1) ./ x )

Answer 1

[James Tursa]

The first element of x is 1, so that element produces 1/(1-1) = 1/0 = inf in the second line. You need to rewrite that second line.

[Jade March]

Thank you! I know I need to rewrite the second line, I'm just not sure how to as I am new to MATLAB. Would you please be able to explain how?

[James Tursa]

You just need a vector that alternates +1, -1, +1, -1, etc. to use for the sign, right? Hint: Start with mod(1:9,2) and see if you can manipulate it into what you want.