Owner's manual

Table Of Contents
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