how to make the matlab code to test the equation below convergent or divergent?

below is the matlab code that I used to solve it. but more code is needed to display the convergent or divergent equation above.

function [ Sum_n, series_1 ] = Coba5( n, es )

%Percobaan 3

clc;

clear;

n = input ('nilai signifikan: ');

series_1 = 0

es = 0.5*(10^(2-n));

for ns = 1:100

x = cumsum( sin(2*ns)./ns.^2)

series_1 = series_1 + x

end

disp([es]')

end