how to obtain variance-corvariance matrix by function

[tolearn]

cs1<-corAR1(0.2)
ran<-rnorm(20,0,cs1)

an AR(1) model with coefficient 0.2, and random 20 normal samples with mean 0 and variance-corvariance structure as cs1, then how to use a function to obtain the 20 dimensional variance-corvariance matrix of ran?

[tolearn]

gotten, thx

cs1<-corAR1(0.2)
ran<-rnorm(20,0,cs1)

an AR(1) model with coefficient 0.2, and random 20 normal samples with mean 0 and variance-corvariance structure as cs1, then how to use a function to obtain the 20 dimensional variance-corvariance matrix of ran?