# Activity 2

Test your understanding of systems and convolution.

## We'll cover the following

## Problem statement

You can use either theory or code to solve this question.

Consider the following two signals:

$\begin{align*} x[n]&=\{2, 1, -1, 3\}\\ y[n]&=\{-1, 4, 1, 1\} \end{align*}$

- Find the circular convolution between them.
- Take their 4-point DFTs, multiply them, and take the IDFT of the result. Compare with the answer obtained in part above.

Are they the same?

## Write your code below

Get hands-on with 1200+ tech skills courses.