cpocon(3) on Linux
The text 1018d6c2ea75, as Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
estimate the reciprocal of the condition number (in the 1-norm) of a complex Hermitian positive definite matrix using the Cholesky factorization A = U**H*U or A = L*L**H computed by CPOTRF