Best Practices for Handling Floating-Point Precision in Financial Applications

[kenshin101]

Expected result: 0.3

print(0.1 + 0.2)

Actual result: 0.30000000000000004

[shafayatsaad]

The recommended approach is to avoid floating point arithmetic for financial data and instead use decimal-based libraries or integer representations.

from decimal import Decimal

a = Decimal("0.1")
b = Decimal("0.2")
result = a + b
print(result) # Output: 0.3