Question

How to convert a float to exponential in Python

Answer 1

def float_to_exponential(num):
    return format(num, "e")

number = 178.36

exponential = float_to_exponential(number)

print('Exponential number:',exponential)



'''
run:

Exponential number: 1.783600e+02

'''

 

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Answer 2

def float_to_exponential(num):
    return f"{num:e}"

number = 178.36

exponential = float_to_exponential(number)

print('Exponential number:',exponential)



'''
run:

Exponential number: 1.783600e+02

'''

 

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Answer 3

def float_to_exponential(num):
    return f"{num:e}"

number = 178.36

print(f"{number:e}")



'''
run:

1.783600e+02

'''

 

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Answer 4

def float_to_exponential(num):
    return f"{num:e}"

number = 178.36

print(f"{number:.3E}")



'''
run:

1.784E+02

'''

 

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