Python Coding challenge - Day 714| What is the output of the following Python Code?

 

Code Explanation:

1) from decimal import Decimal

Imports the Decimal class from Python’s decimal module.

Decimal allows arbitrary-precision decimal arithmetic, avoiding floating-point rounding issues.

2) a = Decimal("0.1") + Decimal("0.2")

Decimal("0.1") creates an exact decimal number 0.1.

Decimal("0.2") creates an exact decimal number 0.2.

Adding them gives exactly Decimal("0.3").

So a = Decimal("0.3").

3) b = 0.1 + 0.2

Here, 0.1 and 0.2 are floating-point numbers (float).

Due to binary representation limits, 0.1 and 0.2 cannot be stored exactly.

The result is something like 0.30000000000000004.

So b ≈ 0.30000000000000004.

4) print(a == Decimal("0.3"), b == 0.3)

a == Decimal("0.3") → True, because both are exact decimals.

b == 0.3 → False, because b ≈ 0.30000000000000004 which is not exactly 0.3.

Final Output

True False

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