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# Python | Numpy np.heaviside() method

• Last Updated : 02 Dec, 2019

With the help of `np.heaviside()` method, we can get the heaviside step function by using `np.heaviside()` method. Syntax : `np.heaviside(array1, array2 or value)`
Return : Return the heaviside series.

Example #1 :
In this example we can see that by using `np.heaviside()` method, we are able to get the array of series of heaviside step function by using this method.

 `# import numpy``import` `numpy as np`` ` `x ``=` `np.array([``-``1.5``, ``0.5``, ``0``, ``0.5``, ``1.5``])``# using np.heaviside() method``gfg ``=` `np.heaviside(x, ``0.5``)`` ` `print``(gfg)`

Output :

[0. 1. 0.5 1. 1.]

Example #2 :

 `# import numpy``import` `numpy as np`` ` `x ``=` `np.zeros(``5``)``y ``=` `np.array([``-``1.5``, ``0.5``, ``0``, ``0.5``, ``-``1.5``])`` ` `# using np.heaviside() method``gfg ``=` `np.heaviside(x, y)`` ` `print``(gfg)`

Output :

[-1.5 0.5 0. 0.5 -1.5]

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