numeric field type same as float type??

In Delphi 3, the help for Database Desktop defines a numeric (N) field
type as -10^307 ... 10^308 with 15 significant digits.  Is this
correct??  Isn't this field type the same as a TFloatField which has a
range of +/- 5.0 x 10^-324 ... 1.7 x 10^308?

Mark Huebner
mhueb...@iac.net