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
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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.
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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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