can anyone solve this? i am getting errors

this is my system: y[n] = x[n] - x[n-1] + x[n-2]

can anyone help me find its transfer function and impulse response.

[Sriram Tadavarty]

Can you show us the code that you have tried and got errored? So that the help would be straight forward and up to the point

[AAYUSH MARU]

clc;
clear all;
close all;
 
num=[1.0 -1.0 1.0];
den=[1.0];
y=impz(num,den);
stem(y);

Answer 1

[Urmila Rajpurohith]

As you are trying to find transfer function from difference equation; you can refer to the below link which answers a similar question

https://www.mathworks.com/matlabcentral/answers/80569-how-can-i-find-transfer-function-from-a-difference-equation