Sinc function graph

1. What is meant by sinc function?
2. Is sinc a L1 function?
3. What are the properties of sinc?

What is meant by sinc function?

The sinc function , also called the "sampling function," is a function that arises frequently in signal processing and the theory of Fourier transforms. The full name of the function is "sine cardinal," but it is commonly referred to by its abbreviation, "sinc." There are two definitions in common use.

Is sinc a L1 function?

sinc is not L1.

What are the properties of sinc?

Properties. The sinc function crosses zero at nonzero multiples of π; zero crossings of the normalized sinc occur at nonzero integer values.