The real data type
real data type represents a 64-bit wide, double-precision, floating-point number.
Literals of the
real data type have the same representation as .NET's
1e5 are all literals of type
There are several special literal forms:
real(null): The is the null value.
real(nan): Not-a-Number (NaN). For example, the result of dividing a
real(+inf): Positive infinity. For example, the result of dividing
real(-inf): Negative infinity. For example, the result of dividing