VFP help says that RAND() returns a random number between 0 and 1.

I always thought that the allowable return value range included 0, but did not include 1 (although it could get as close as it wants to unity).

The help definition seems to include both 0 and 1 (inclusive), or exclude both 0 and 1 (exclusive). Do we have an unambiguous definition somewhere?

Bob