Actual Error Covariance

Famous quotes containing the words actual and/or error:

“It is impossible to think of a man of any actual force and originality, universally recognized as having those qualities, who spent his whole life appraising and describing the work of other men.”
—H.L. (Henry Lewis)

“The broadest and most prevalent error requires the most disinterested virtue to sustain it.”
—Henry David Thoreau (1817–1862)