This library provides two numeric type: Decimal and Dddouble.
Operation on arbitrary precision decimal number. This module provides exact decimal arithmetic and are well suited for financial calculations.
Operations on double double 128-bit floating point numbers.
This package implements double double 128-bit floating point numbers
as a pair of IEEE double values. This extends the precision to 31 decimal digits
(versus 15 for double), but keeps the range as a double.
If you add two regular 64-bit :double values you can quickly notice the imprecision
due to decimal fractions that cannot be represented precisely. For example:
0.1 +. 0.2 ;;
- : float = 0.300000000000000044