The SetState command sets the state of the pseudo-random number generator used by Generate.  Currently the Mersenne Twister generator is used.

A state returned by GetState can be passed into SetState to regenerate a sequence of numbers.

SetState accepts one optional argument, state.

state=value

The state argument specifies the data used to set the state of the generator.  This argument is passed on to the SetState method of the underlying pseudo-random number generator.  Currently the MersenneTwister[SetState] function is called.  If the state argument is not given then the state is seeded using values taken from the system.

$\mathrm{with}\left(\mathrm{RandomTools}\right)$

$\left[\mathrm{AddFlavor}\,\mathrm{BlumBlumShub}\,\mathrm{Generate}\,\mathrm{GenerateSimilar}\,\mathrm{GenerateSimilarODE}\,\mathrm{GetFlavor}\,\mathrm{GetFlavors}\,\mathrm{GetState}\,\mathrm{HasFlavor}\,\mathrm{LinearCongruence}\,\mathrm{MersenneTwister}\,\mathrm{QuadraticCongruence}\,\mathrm{RandomExpand}\,\mathrm{RemoveFlavor}\,\mathrm{SetState}\right]$

$s≔\mathrm{GetState}\left(\right)$

$\mathrm{seq}\left(\mathrm{Generate}\left(\mathrm{integer}\right)\,i=1..5\right)$

$\mathrm{-104281139460},\mathrm{-306860183579},\mathrm{-477575829529},300187484465,\mathrm{-72447943125}$

$\mathrm{SetState}\left(\mathrm{state}=1234567\right)$

$\mathrm{seq}\left(\mathrm{Generate}\left(\mathrm{integer}\right)\,i=1..5\right)$

$133358104197,\mathrm{-226369204},\mathrm{-199647555608},\mathrm{-83694368637},\mathrm{-87420861549}$

$\mathrm{SetState}\left(\mathrm{state}=1234567\right)$

$\mathrm{seq}\left(\mathrm{Generate}\left(\mathrm{integer}\right)\,i=1..5\right)$

$133358104197,\mathrm{-226369204},\mathrm{-199647555608},\mathrm{-83694368637},\mathrm{-87420861549}$

$\mathrm{SetState}\left(\mathrm{state}=s\right)$

$\mathrm{seq}\left(\mathrm{Generate}\left(\mathrm{integer}\right)\,i=1..5\right)$

$\mathrm{-104281139460},\mathrm{-306860183579},\mathrm{-477575829529},300187484465,\mathrm{-72447943125}$