Numeric comparisons are based on magnitudes, floating-point numbers may not always work as you'd expect.

You may need conversions before you can compare them meaningfully:

print( 1.1 + 2.2 == 3.3 ) # Should be True print( 1.1 + 2.2 ) # Close to 3.3, but not exactly: limited precision print( int(1.1 + 2.2) == int(3.3) ) # OK if convert: # from w w w . java 2 s .c o m

This is because floating-point numbers cannot represent some values exactly due to their limited number of bits.

Python has decimals and fractions that can address such limitations.

- Classic, Floor, and True Division
- Float Division supporting either Python 2.X or 3.X
- Float number floor versus truncation
- Float number Truncation toward zero regardless of sign
- Division operators reference for Python 3.X and Python 2.X