What is the focus of the course Functions of a Real Variable?
Fundamentals of real analysis and applications, including Lebesgue measure and integral, integrals on sigma algebras, and introduction to Hilbert spaces and LPspaces.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the focus of the course Functions of a Real Variable?

### Input: Not applicable

### Response:
Fundamentals of real analysis and applications, including Lebesgue measure and integral, integrals on sigma algebras, and introduction to Hilbert spaces and LPspaces.<|im_end|>