# jax.numpy.sinc¶

jax.numpy.sinc(x)[source]

Return the normalized sinc function.

LAX-backend implementation of sinc().

Original docstring below.

The sinc function is $$\sin(\pi x)/(\pi x)$$.

Note

Note the normalization factor of pi used in the definition. This is the most commonly used definition in signal processing. Use sinc(x / np.pi) to obtain the unnormalized sinc function $$\sin(x)/(x)$$ that is more common in mathematics.

Parameters

x (ndarray) – Array (possibly multi-dimensional) of values for which to to calculate sinc(x).

Returns

outsinc(x), which has the same shape as the input.

Return type

ndarray

References

1

Weisstein, Eric W. “Sinc Function.” From MathWorld–A Wolfram Web Resource. http://mathworld.wolfram.com/SincFunction.html

2

Wikipedia, “Sinc function”, https://en.wikipedia.org/wiki/Sinc_function