Python: Display a given decimal value in scientific notation

Last update on April 02 2025 12:31:44 (UTC/GMT +8 hours)

7. Scientific Notation Display

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:

For more Practice: Solve these Related Problems:

• Write a Python program to convert a given Decimal value to scientific notation and print the result using the format specifier 'E'.
• Write a Python function that accepts a Decimal value and returns its scientific notation representation as a string.
• Write a Python script to generate a list of Decimal values and then print each value in scientific notation with a fixed number of significant figures.
• Write a Python program to format a Decimal value in scientific notation and compare the output with the built-in format() function’s scientific format.

Python Code Editor:

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