What is the meaning of Sinc?

A symbol of the cardinal sine function. (f(x) = sin(x)/x)

A symbol of the sinc function. (f(x) = sin(πx)/(πx))

Ellipsis of sinc function: f = sin(x)/x.

Ellipsis of sinc function: f = sin(pi*x)/(pi*x).

zinc

moral, morality

silverberry

treasure

zinc

sink, basin

zinc

Source: wiktionary.org