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Original Message (ID '185092') By yehuda:
Random[] is an old function (superseded by RandomReal and RandomInteger since ver. 6, see documentation) and is not identical to the other two check this SeedRandom[100]; RandomReal[NormalDistribution[]] SeedRandom[100]; Random[NormalDistribution[]] SeedRandom[100]; RandomVariate[NormalDistribution[]] the remaining two seems to be identical Table[(SeedRandom[100]; RandomReal[NormalDistribution[], 10^n]) == (SeedRandom[100]; RandomVariate[NormalDistribution[], 10^n]), {n, 6}] yehuda