OptionalexactCompute the condition number exactly instead of estimating it. Default: false.
OptionalmethodEstimation method when exact is false: "qr" applies LINPACK's dtrco estimate to the R factor of
the QR decomposition (of the transpose if z is wide); "direct" uses 1 / rcond(z). Default: "qr".
OptionalnormThe norm. Default: "2" when exact is true, otherwise "1". With exact: true, "2" uses the singular
values and other norms use norm(z) * norm(solve(z)). With exact: false, as in R: the estimates through a
triangular factor (method: "qr", or "direct" with triangular: true) use the infinity norm only for "I"
written exactly so and the 1-norm for any other norm (R warns for norms other than "1", "O" and "I", and
for "2"); method: "direct" without triangular accepts "1", "O" and "I" in either case and throws for
any other.
OptionaltriangularTreat z as triangular and use only its triangle given by uplo. Default: false. Has an effect only with method: "direct" (as in R).
OptionaluploWith triangular: true, use the upper ("U") or lower ("L") triangle. Default: "U".
Options for kappa.