BitStreamGenerators (MersenneTwister, Well generators) do not clear normal
deviate cache on setSeed
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Key: MATH-723
URL: https://issues.apache.org/jira/browse/MATH-723
Project: Commons Math
Issue Type: Bug
Affects Versions: 2.2, 2.1, 2.0
Reporter: Phil Steitz
Assignee: Phil Steitz
Fix For: 3.0
The BitStream generators generate normal deviates (for nextGaussian) in pairs,
caching the last value generated. When reseeded, the cache should be cleared;
otherwise seeding two generators with the same value is not guaranteed to
generate the same sequence.
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