Def:SampleMeanMeanForm
Def:SampleVar
Def:SampleCoVar
Def:SampleCoVarMat
Def:TotVar
Rem:PCA
Rem:DimRed
Def:ProbVect
Def:MarkovChain
Def:SteadyState
Thm:SteadyStateExistence
Def:Conv
Def:EchelonForm
Def:LU
Thm:LUEx