wrapped(*args, **kwargs)

This docstring was copied from numpy.sinc.

Some inconsistencies with the Dask version may exist.

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

Notes

sinc(0) is the limit value 1.

The name sinc is short for "sine cardinal" or "sinus cardinalis".

The sinc function is used in various signal processing applications, including in anti-aliasing, in the construction of a Lanczos resampling filter, and in interpolation.

For bandlimited interpolation of discrete-time signals, the ideal interpolation kernel is proportional to the sinc function.

Parameters

x : ndarray (Not supported in Dask)

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

Returns

out : ndarray

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

Return the normalized sinc function.

Examples

This example is valid syntax, but we were not able to check execution

>>> import matplotlib.pyplot as plt  # doctest: +SKIP
... x = np.linspace(-4, 4, 41)  # doctest: +SKIP
... np.sinc(x)  # doctest: +SKIP
 array([-3.89804309e-17,  -4.92362781e-02,  -8.40918587e-02, # may vary
        -8.90384387e-02,  -5.84680802e-02,   3.89804309e-17,
        6.68206631e-02,   1.16434881e-01,   1.26137788e-01,
        8.50444803e-02,  -3.89804309e-17,  -1.03943254e-01,
        -1.89206682e-01,  -2.16236208e-01,  -1.55914881e-01,
        3.89804309e-17,   2.33872321e-01,   5.04551152e-01,
        7.56826729e-01,   9.35489284e-01,   1.00000000e+00,
        9.35489284e-01,   7.56826729e-01,   5.04551152e-01,
        2.33872321e-01,   3.89804309e-17,  -1.55914881e-01,
       -2.16236208e-01,  -1.89206682e-01,  -1.03943254e-01,
       -3.89804309e-17,   8.50444803e-02,   1.26137788e-01,
        1.16434881e-01,   6.68206631e-02,   3.89804309e-17,
        -5.84680802e-02,  -8.90384387e-02,  -8.40918587e-02,
        -4.92362781e-02,  -3.89804309e-17])

This example is valid syntax, but we were not able to check execution

>>> plt.plot(x, np.sinc(x))  # doctest: +SKIP
[<matplotlib.lines.Line2D object at 0x...>]

This example is valid syntax, but we were not able to check execution

>>> plt.title("Sinc Function")  # doctest: +SKIP
Text(0.5, 1.0, 'Sinc Function')

This example is valid syntax, but we were not able to check execution

>>> plt.ylabel("Amplitude")  # doctest: +SKIP
Text(0, 0.5, 'Amplitude')

This example is valid syntax, but we were not able to check execution

>>> plt.xlabel("X")  # doctest: +SKIP
Text(0.5, 0, 'X')

This example is valid syntax, but we were not able to check execution

>>> plt.show()  # doctest: +SKIP

See :

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File: /dask/array/ufunc.py#26
type: <class 'function'>
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