HP 49g Graphing Calculator - Manual (Page 22)

Setting or clearing several Flags at once
In algebraic mode, the syntax is:
command^llist}')
In RPN mode, enter a list of the flags you want to set or clear on the first
level of the stack and then enter the appropriate command.
For example, to set flags -19 and-40 in algebraic mode, you enter
SF({-19,-401) and press (ENTER). In RPN mode, you enter {-19 ^0} onto level
1 of the stack, enter SF onto the command line and press (ENTER') . (Note that
in algebraic mode, you must enter a comma between the elements in a list.
In RPN mode, you can enter a comma or a space.)
Similarly, to clear flags -19 and-40 in algebraic mode, you enter
CF({-19,-40j) and press
(ENTER). In RPN mode, you enter {-19 -40{ onto
level 1 of the stack, enter CF onto the command line and press (ENTER).
Method 3
The flags that you are likely to need to change can be changed from
various input fonns (as explained on page 2-1). To change one of these
flags, display the appropriate input fonn, place the cursor in the flag field
and press
CHK.
If the flag was set before, it is cleared; if it was clear before,
it is now set. (A tick mark in the field indicates that the flag is set.)
Examples of flags that can be set from input forms include operating
mode, number format, angle measure, coordinate system, beep, key click,
keep last stack, textbook mode, and clock type. These, and numerous
other flags, are accessible by pressing
(MODE).
Editing input forms is described in detail in chapter 2 of the User’s Guide.
System flags Page 2-3