Order Directional Derivative

Famous quotes containing the words order and/or derivative:

“It is only because a person has volitions of the second order that he is capable both of enjoying and of lacking freedom of the will.”
—Harry Gordon Frankfurt (b. 1929)

“Poor John Field!—I trust he does not read this, unless he will improve by it,—thinking to live by some derivative old-country mode in this primitive new country.... With his horizon all his own, yet he a poor man, born to be poor, with his inherited Irish poverty or poor life, his Adam’s grandmother and boggy ways, not to rise in this world, he nor his posterity, till their wading webbed bog-trotting feet get talaria to their heels.”
—Henry David Thoreau (1817–1862)