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Python: Display a given decimal value in scientific notation

Python module: Exercise-7 with Solution

Write a Python program to display a given decimal value in scientific notation. Use decimal.Decimal

Sample Solution:

Python Code:

import decimal
#Source: https://bit.ly/2SfZEtL
def format_e(n):
    a = '%E' % n
    return a.split('E')[0].rstrip('0').rstrip('.') + 'E' + a.split('E')[1]

print("Original decimal value: "+ "40800000000.00000000000000")
print("Scientific notation of the said decimal value:")
print(format_e(decimal.Decimal('40800000000.00000000000000')))
print("\nOriginal decimal value: "+ "40000000000.00000000000000")
print("Scientific notation of the said decimal value:")
print(format_e(decimal.Decimal('40000000000.00000000000000')))
print("\nOriginal decimal value: "+ "40812300000.00000000000000")
print("Scientific notation of the said decimal value:")
print(format_e(decimal.Decimal('40812300000.00000000000000')))

Sample Output:

Original decimal value: 40800000000.00000000000000
Scientific notation of the said decimal value:
4.08E+10

Original decimal value: 40000000000.00000000000000
Scientific notation of the said decimal value:
4E+10

Original decimal value: 40812300000.00000000000000
Scientific notation of the said decimal value:
4.08123E+10

Flowchart:

Flowchart: Display a given decimal value in scientific notation.

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Python Code Editor:

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Previous: Write a Python program to configure the rounding to round to the nearest, with ties going to the nearest even integer.
Next: Python built-in Modules Exercise Home.

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Python: Tips of the Day

Inverts a dictionary with non-unique hashable values:

Example:

def tips_collect_dictionary(obj):
  inv_obj = {}
  for key, value in obj.items():
    inv_obj.setdefault(value, list()).append(key)
  return inv_obj
ages = {
  "Owen": 25,
  "Jhon": 25,
  "Pepe": 15,
}
print(tips_collect_dictionary(ages))

Output:

{25: ['Owen', 'Jhon'], 15: ['Pepe']}

 





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