Can you explain what is meant by the term 'Func' in the context of programming?

In C#, Func is a built-in delegate that represents a method with a return value and zero or more parameters. It allows passing methods as objects, which is convenient for functional programming.

The syntax of Func is generic: the last parameter indicates the return type, and the preceding ones are the input parameter types.

Example:

Func<int, int, int> sum = (a, b) => a + b;
int result = sum(3, 4); // result will be 7

Here, Func<int, int, int> is a delegate that takes two int parameters and returns an int. Func is often used for passing logic into methods, LINQ queries, etc.