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184functions appeared in
185.Bx 4.2 .
186.Sh BUGS
187.Pp
188About 2/3 the speed of
189.Xr rand 3 .
190.Pp
191The historical implementation used to have a very weak seeding; the
192random sequence did not vary much with the seed.
193The current implementation employs a better pseudo-random number
194generator for the initial state calculation.