Like two lost and lonely railroad tracks, the coordinate axes stretch to the north and to the south and to the past and to the future.
A Tour of the Calculus, Chapter 10 (p. 61), Pantheon Books. 1995
Like two lost and lonely railroad tracks, the coordinate axes stretch to the north and to the south and to the past and to the future.
A Tour of the Calculus, Chapter 10 (p. 61), Pantheon Books. 1995