> 0.1 + 0.2 == 0.3 false > 0.1 + 0.2 0.30000000000000004
double. If you want the details on what that means, either quickly read The Floating-Point Guide - What Every Programmer Should Know About Floating-Point Arithmetic or fully digest What Every Computer Scientist Should Know About Floating-Point Arithmetic.
But if I really want
> Big(0.1).plus(0.2).eq(0.3) true > Big(0.1).plus(0.2).toString() "0.3"