Actual Error Covariance

Famous quotes containing the words actual and/or error:

“The genius is a genius by the first look he casts on any object. Is his eye creative? Does he not rest in angles and colors, but beholds the design,—he will presently undervalue the actual object.”
—Ralph Waldo Emerson (1803–1882)

“Theoretically, I grant you, there is no possibility of error in necessary reasoning. But to speak thus “theoretically,” is to use language in a Pickwickian sense. In practice, and in fact, mathematics is not exempt from that liability to error that affects everything that man does.”
—Charles Sanders Peirce (1839–1914)