Currently, `w.Sub(&u)` returns u-w instead of w-u. This is both nonintuitive and inconsistend with `time.Sub`. Change the sign of the return value of `w.Sub(&u)` to output w-u instead.
Currently,
w.Sub(&u)returns u-w instead of w-u. This is both nonintuitive and inconsistend withtime.Sub.Change the sign of the return value of
w.Sub(&u)to output w-u instead.