Functional programming is a programming paradigm: a different way of thinking about programs than the mainstream, imperative paradigm you're probably used to. For this reason, learning to think functionally is challenging but also very enriching. My ambition is that by attending this course, you'll never look at code with the same eyes as before!

The learning process can be a bumpy ride. You're likely to go from frustration at concepts that seem obscure or useless to exhilaration when something clicks in your mind. at least 250 word

• Why are functions important?
• What is a recursive function in C#? Give an example