Nothing
#########################################################################
# It solves the system ASYM X = BMAT for X where ASYM is symmetric
# Returns X
#########################################################################
symsolve <- function(Asym, Bmat)
{
n <- ncol(Asym)
if(max(abs(Asym - t(Asym)))/max(abs(Asym)) > 1e-10)
stop("Argument not symmetric.")
Lmat <- chol(Asym, T)
if(attr(Lmat, "rank") < n)
stop("Argument singular.")
Lmatinv <- solve(Lmat[, order(attr(Lmat, "pivot"))])
Xmat <- Lmatinv %*% t(Lmatinv) %*% Bmat
return(Xmat)
}
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