The numpy.isfinite() function tests element-wise whether it is finite or not(not infinity or not Not a Number) and return the result as a boolean array. Syntax :
numpy.isfinite(array [, out])
Parameters :
array : [array_like]Input array or object whose elements,
we need to test for infinity
out : [ndarray, optional]Output array placed with result.
Its type is preserved and it must be of the right
shape to hold the output.
Return :
boolean array containing the result
Code 1 :
Python
# Python Program illustrating# numpy.isfinite() method import numpy as geek print("Finite : ", geek.isfinite(1), "\n")print("Finite : ", geek.isfinite(0), "\n")# not a numberprint("Finite : ", geek.isfinite(geek.nan), "\n")# infinityprint("Finite : ", geek.isfinite(geek.inf), "\n")print("Finite : ", geek.isfinite(geek.NINF), "\n") |
Output :
Finite : True Finite : True Finite : False Finite : False Finite : False
Code 2 :
Python
# Python Program illustrating# numpy.isfinite() method import numpy as geek # Returns True/False value for each element b = geek.arange(20).reshape(5, 4) print("\n",b)print("\nIs Finite : \n", geek.isfinite(b))b = [[1j], [geek.inf]]print("\nIs Finite : \n", geek.isfinite(b)) |
Output :
[[ 0 1 2 3] [ 4 5 6 7] [ 8 9 10 11] [12 13 14 15] [16 17 18 19]] Is Finite : [[ True True True True] [ True True True True] [ True True True True] [ True True True True] [ True True True True]] Is Finite : [[ True] [False]]
References : https://docs.scipy.org/doc/numpy-dev/reference/generated/numpy.isfinite.html
Note : These codes won’t run on online IDE’s. So please, run them on your systems to explore the working. This article is contributed by Mohit Gupta_OMG 😀. If you like Lazyroar and would like to contribute, you can also write an article using write.neveropen.co.za or mail your article to review-team@neveropen.co.za. See your article appearing on the Lazyroar main page and help other Geeks. Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above.
