If at **any time** you have a question about any of the two parts of the article, **send it to me through my YouTube channel**, in the **comments **of the corresponding video, so that I can answer you as quickly as possible.

You can also send me your **suggestions **and **proposals **for future topics and mathematical problems.

Remember that **mathematics is the main tool in many areas**, including physics and computing, so mathematicians have a very big **responsibility **on our shoulders.