Function Reference
— Loadable Function: c = rcond (a)

Compute the 1-norm estimate of the reciprocal condition as returned by LAPACK. If the matrix is well-conditioned then c will be near 1 and if the matrix is poorly conditioned it will be close to zero.

The matrix a must not be sparse. If the matrix is sparse then condest (a) or rcond (full (a)) should be used instead.

See also: inv mldivide