With a new Calendar package, Maple 2018 makes it easier to work with dates and times, such as analyzing time-dependent data, or calculating the flight duration to your next conference.
Maple 2018 includes new data structures that represent dates and times. There are numerous functions for working with dates and times, including fundamental operations such as date arithmetic and more advanced functionality for working with Calendars. Existing packages such as Finance also support the new Date object.
Dates, Times, and Clocks
> | now := Now( SystemUTCClock ); |
> | today := Date( now ); |
> | today := Date(); |
> | Year( today ); |
> | DayOfMonth( today ); |
> | Minute( today ); |
> | d1 := Date( 2017, 12, 25 ); |
> | d2 := Date( 2000, 12, 25 ); |
> | t := d1 - d2; |
> | convert( t, 'units', 'days' ); |
(For more control over the units used in computing the time between two dates, use the DateDifference command in the Calendar package).
> | ( d1 + d2 ) / 2; |
> | depart := Date( 2007, 3, 12, 20, 44, 'timezone' = "America/Toronto" ); |
> | arrive := Date( 2007, 3, 13, 9, 3, 'timezone' = "Europe/Paris" ); |
> | flight_time := arrive - depart; |
> | convert( flight_time, 'units', 'hours' ); |
The Calendar Package
> | with( Calendar ); |
> | IsLeapYear( 2000 ); |
> | IsLeapYear( 1900 ); |
> | DayOfWeek( 2017, 12, 25 ); |
> | DayOfYear( 2017, 12, 25 ); |
> | HostTimeZone(); |
> | DateDifference( depart, arrive, 'units' = 'h' ); |
> | DateDifference( depart, arrive, 'units' = 'mixed' ); |
> | d := Date( 2000, 1, 14, 10, 55, 3 ); |
> | AdjustDateField( d, "minute", -3 ); |
> | AdjustDateField( d, "month", 30 ); |
> | AdjustDateField( d, "month", 30, 'method' = "roll" ); |
> | AdjustDateField( d, "month", 30, 'method' = "add" ); |
*Ce programme d'évaluation n'est proposé actuellement ni aux étudiants ni aux particuliers.