Decimal constants
A decimal constant is a signed or unsigned number of no more than 31 digits and either includes a decimal point or is not within the range of binary integers.
The precision is the total number of digits, including those, if any, to the right of the decimal point. The total includes all leading and trailing zeros. The scale is the number of digits to the right of the decimal point, including trailing zeros.
Examples: The following decimal constants have, respectively, precisions
and scales of 5 and 2; 4 and 0; 2 and 0; and 23 and 2:
025.50 1000. -15. +375893333333333333333.33