rcond(1)

NAME
rcond - inverse condition number

CALLING SEQUENCE
rcond(X)

PARAMETERS

X   : real or complex square matrix

DESCRIPTION
is an estimate for the reciprocal of the
condition of X in the 1-norm.

If X is well conditioned, rcond(X) is close to 1.
If not, rcond(X) is close to 0.

sets r to rcond(X) and returns z such that

Thus, if rcond is small z is a vector in the kernel.

SEE ALSO
svd, cond, inv