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Convert list of Celsius values into Fahrenheit using NumPy array

  • Last Updated : 02 Sep, 2020

Let us see how to convert a list of Celsius temperatures into Fahrenheit by converting them into NumPy array.
The formula to convert Celcius to Farenhiet is :

feh = (9 * cel / 5 + 32)

Method 1 : Using the numpy.array() method.




# importing the module
import numpy as np
  
# taking the celsius  input
inp = [0, 12, 45.21, 34, 99.91]
  
# storing the input
# in numpy array
cel = np.array(inp)
  
print(f"Celsius {cel}")
  
# using formulae
feh = (9 * cel / 5 + 32)
  
# printing results
print(f"Fahrenheit {feh}")

Output :

Celsius [ 0.   12.   45.21 34.   99.91]
Fahrenheit [ 32.     53.6   113.378  93.2   211.838]

Method 2 : Using the numpy.asarray() method.




# importing the module
import numpy as np
  
# taking the celsius  input
inp = [0, 12, 45.21, 34, 99.91]
  
# storing the input
# in numpy array
cel = np.asarray(inp)
  
print(f"Celsius {cel}")
  
# using formulae
feh = (9 * cel / 5 + 32)
  
# printing results
print(f"Fahrenheit {feh}")

Output :

Celsius [ 0.   12.   45.21 34.   99.91]
Fahrenheit [ 32.     53.6   113.378  93.2   211.838]

Method 3 : Using numpy.arange().




# importing the module
import numpy as np
  
# taking thecelsius  input
inp = [0, 12, 45.21, 34, 99.91]
  
# arange will not directly
# convert into numpy array
cel = np.arange(5)
  
# the above code
# will give o/p as
# cel = [0, 1, 2, 3, 4]
cel = [i for i in inp]
# thus the input(inp)
# is stored in cel
# using list comprehension
  
print(f"Celsius {cel}")
  
# applying formulae
# using list comprehension
feh = [(9 * i / 5 + 32) for i in cel]
  
# printing results
print(f"Fahrenheit {feh}")

Output :

Celsius [ 0.   12.   45.21 34.   99.91]
Fahrenheit [ 32.     53.6   113.378  93.2   211.838]


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