Generate and display series of fractions

Question

I want to generate a series like:

1/2, -1/3, 1/4, -1/5, ..., 1/100 

My code is not displaying in fraction.

i= 2 : 100,  k=((-1).^(i+1)).*i, y= (1/k)

Answer 1

Here is another solution:

k = 100;

num = repmat([1 -1],1,(k / 2)).';
num_str = num2str(num);

den = (1:k).';
den_str = num2str(den,'%-d');

disp([num_str repmat('\',k,1) den_str]);

Output:

 1\1  
-1\2  
 1\3  
-1\4  
 1\5  
-1\6  
 1\7  
-1\8  
 1\9  
-1\10 
...