Angles can be expressed in both degrees and radians. In this article, we will know about the approaches and methods to convert degrees to radians.
Method #1 : Using radians()
This method takes an array as an input parameter and returns an array that has radian values.
Python
# python code demonstrating usage of radians # method to convert degrees to radians # importing numpy library import numpy as np import math # initialising an array array = np.arange( 20. ) * 90 # printing degree values print ( 'Values of array in Degrees:' ,array) # converting to radians radian_array = np.radians(array) # printing radian values print ( 'Values of array in radians:' ,radian_array) |
Output:
Method #2: Using deg2rad()
This method takes input array and returns an array that has radian values the same as the size of the input array.
Python3
# python code demonstrating usage of radians # method to convert degrees to radians # importing numpy library import numpy as np import math # initialising an array array = np.arange( 20. ) * 90 # printing degree values print ( 'Values of array in Degrees:' ,array) # converting to radians radian_array = np.deg2rad(array) # printing radian values print ( 'Values of array in radians:' ,radian_array) |
Output:
Method 3: Using Formula
Python3
# python code demonstrating usage of radians # method to convert degrees to radians # importing numpy library import numpy as np import math # initialising an array array = np.arange( 20. ) * 90 # printing degree values print ( 'Values of array in Degrees:' ,array) radian_array = [] # converting to radians for i in array: radian_array.append(i * math.pi / 180 ) # printing radian values print ( 'Values of array in radians:' ,radian_array) |
Output:
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