Python: Configure the rounding to round up and round down a given decimal value
Python module: Exercise-2 with Solution
Write a Python program to configure rounding to round up and round down a given decimal value. Use decimal.Decimal
Sample Solution:
Python Code:
import decimal
print("Configure the rounding to round up:")
decimal.getcontext().prec = 1
decimal.getcontext().rounding = decimal.ROUND_UP
print(decimal.Decimal(30) / decimal.Decimal(4))
print("\nConfigure the rounding to round down:")
decimal.getcontext().prec = 3
decimal.getcontext().rounding = decimal.ROUND_DOWN
print(decimal.Decimal(30) / decimal.Decimal(4))
print("\nConfigure the rounding to round up:")
print(decimal.Decimal('8.325').quantize(decimal.Decimal('.01'), rounding=decimal.ROUND_UP))
print("\nConfigure the rounding to round down:")
print(decimal.Decimal('8.325').quantize(decimal.Decimal('.01'), rounding=decimal.ROUND_DOWN))
Sample Output:
Configure the rounding to round up: 8 Configure the rounding to round down: 7.5 Configure the rounding to round up: 8.33 Configure the rounding to round down: 8.32
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Previous: Write a Python program to construct a Decimal from a float and a Decimal from a string. Also represent the Decimal value as a tuple.
Next: Write a Python program to round a Decimal value to the nearest multiple of 0.10, unless already an exact multiple of 0.05.
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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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