HP 49g Graphing Calculator - Manual (Page 10)

How memory is structured.............................................................. 11-1
Accessing port contents.................................................................... 11-2
Backup objects.................................................................................... 11-2
Backing up and restoring HOME ............................................... 11-3
Storing and deleting backup objects .......................................... 11-4
Using data in backup objects............................................................11-4
Library objects ................................................................................... 11-5
How the HP 49G manages memory............................................... 11-7
Port 0 ............................................................................................. 11-7
Port 1 ............................................................................................. 11-7
Port 2 ............................................................................................. 11-7
To list a port’s contents, and find free memory.............................. 11-8
Chapter 12: Date and time arithmetic 12-1
Date and time formats...................................................................... 12-1
To set the format of the date and time........................................12-1
Date and time tools ...........................................................................12-2
Displaying the Time menu ........................................................ 12-2
To copy the date to the stack or history ..................................... 12-2
To copy the time to the stack or history......................................12-2
Calculating with dates...................................................................... 12-3
To add days to a given date .......................................................12-3
To subtract days from a given date .......................................... 12-3
To determine the number of days between two dates............. 12-4
Calculating with times ..................................................................... 12-4
To convert decimal time to HMS format.................................. 12-4
To convert a time in HMS format to decimal format .............. 12-5
To add times in HMS format......................................................12-5
To subtract times in HMS fonnat............................................... 12-5
System time ........................................................................................12-6
To display system time................................................................12-6
To convert system time to HMS time .......................................12-6
To calculate elapsed time in seconds.........................................12-7
Chapter 11: Memory 11-1
Contents Page V