//Example 1.11
//MAXIMA SCILAB TOOLBOX REQUIRED FOR THIS PROGRAM
//Testing Stability of Given System
clear;
clc ;
close ;
syms n;
x =(1/2)^n
X= symsum (x,n ,0, %inf );
//Display the result in command window
disp (X,"Summation is :");
disp('Hence Summation < infinity. Given System is Stable');