The following claim in the description of the truncate family (and a
similar one for the round family) confused me:

  However, by any divisor, the quotient of +1, 0, or -1 is 0; that is,
  three contiguous dividends by a common divisor share a common
  quotient.

Unless I'm missing something, the above is not true if the divisor is 1
or -1.

Regards,

-chaw