Answer a duration of `d' days and `secs' seconds. The last
parameter is unused; this message is available for interoperability
with the DateTime class.
1.66.3 Duration: arithmetics
* factor
Answer a Duration that is `factor' times longer than the receiver
+ aDuration
Answer a Duration that is the sum of the receiver and aDuration's
lengths.
- aDuration
Answer a Duration that is the difference of the receiver and aDuration's
lengths.
/ factorOrDuration
If the parameter is a Duration, answer the ratio between the receiver
and factorOrDuration. Else divide the receiver by factorOrDuration (a
Number) and answer a new Duration that is correspondingly shorter.
abs
Answer a Duration that is as long as the receiver, but always in
the future.
days
Answer the number of days in the receiver
negated
Answer a Duration that is as long as the receiver, but with past and
future exchanged.
negative
Answer whether the receiver is in the past.
positive
Answer whether the receiver is a zero-second duration or is
in the future.
printOn: aStream
Print a represention of the receiver on aStream.
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on May, 22 2008
using texi2html