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numpy.isposinf() in Python

Last Updated : 8 Mar, 2024

The numpy.isposinf() function tests element-wise whether it is positive infinity or not and returns the result as a boolean array. 

Syntax : 

numpy.isposinf(array, y = None)

Parameters:  

array : [array_like]Input array or object whose elements, we need to test for infinity.
y : [array_like]A boolean array with the same shape and type as x to store the result.

Return: 

boolean array containing the result. For scalar input, the result is a new boolean with value
True if the input is positive or negative infinity; otherwise the value is False.
For array input, the result is a boolean array with the same shape as the input and the values
are True where the corresponding element of the input is positive or negative infinity; 
elsewhere the values are False.

Code 1:  

Output : 

Positive : False 

Positive : False 

Positive : False 

Positive : True 

Positive : False 

Checking for positivity : [0 0 1]

Code 2 :  

Output : 

 [[ 0 1 2 3 4 5]
 [ 6 7 8 9 10 11]
 [12 13 14 15 16 17]]

Is Positive Infinity : 
 [[False False False False False False]
 [False False False False False False]
 [False False False False False False]]

Is Positive Infinity : 
 [[ True]
 [False]]

Note : 
These codes won't run on online IDE's. So please, run them on your systems to explore the working.

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