numpy.rot90 () in Python

Michael Zippo 18.07.2021

numpy.rot90 (array, k = 1, axes = (0, 1)): rotates the array 90 degrees in the plane specified by the axis (0 or 1).
Parameters :

  array:  [array_like] ie array having two or more dimensions.  k:  [optional, int] No. of times we wish to rotate array by 90 degrees.  axes:  [array_like] Plane, along which we wish to rotate array.

Returns :

 rotated copy of array

       # Python program illustrating  
  # numpy.rot90 () method  
   
   import   numpy as geek 
   
   array   =   geek.arange (  12  ). reshape (  3  ,   4  ) 
   print   (  "Original array:"  , array)  
   
  # Spinning array 4 times: returns the same original array  
   print   (  "Array being rotated 4 times:"  , geek.rot90 (array,   4  )) 
   
  # Rotate once 
   print   (  "Rotated array:"  , geek.rot90 (array)) 
   
  # Rotated twice  
   print   (  "Rotated array:"  , geek.rot90 (array,   2  ))

Output:

 Original array: [[ 0 1 2 3] [4 5 6 7] [8 9 10 11]] Array being rotated 4 times: [[0 1 2 3] [4 5 6 7] [8 9 10 11]] Rotated array: [[3 7 11] [2 6 10] [1 5 9] [0 4 8]] Rotated array: [[11 10 9 8] [7 6 5 4] [3 2 1 0]]

Links:
https://docs.scipy. org / doc / numpy-dev / reference / generated / numpy.rot90.html

Notes:
These codes will not work for online ID ... Please run them on your systems to see how they work

This article is provided by Mohit Gupta_OMG

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numpy.rot90 () in Python

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