Initialize another variable say X3 as X3 = []
Then use X3 to store x1 and g(x) values
Modify this portion of code as
X3 = [];
x1=input('\n enter initial value:-');
acc=input('\n enter accuracy:-');
n=input('\n itterations:-');
X3 = [X3 x1];
while (dg(x1)>1)
x1=input('\n enter initial value:-');
X3 = [X3 x1];
end
Then other changes in below portion of Code
if abs(x2-x1)>acc
x1=x2;
X3 = [X3 x1];
else
fprintf('\n root is %f',x2');
X3 = [X3 x2];
break;
end
