Return a normal number y
and exponent exp
satisfying x = y * 2^exp
.
The maximum biased base 2 exponent for a subnormal double-precision floating-point number.
The minimum biased base 2 exponent for a subnormal double-precision floating-point number.
Smallest positive double-precision floating-point number.
The minimum base 10 exponent for a subnormal double-precision floating-point number.