HP 48gII Graphing, 50g Graphing manual ~@ & Í @ &†, @%VARNAME% = varname, Keyboard Shortcuts G3

Keycode	Keystroke	Definition
93.61	~@& 2	¡ (upside down exclamation point)
94.61	~@& 3	¿ (upside down question mark)
104.31	@& Í (@& †)	; or . (depends on flag –51)
104.61	~@&Í(@&†)	; or . (depends on flag –51)
105.31	@& Ï(@& `)	Toggles exact/approximate mode (flag –105)

Shifted softkeys

This section describes the effect of using the shift keys and menu labels displayed above the A through F keys.

@%VARNAME% = 'varname' !©.

Applies to the VAR menu, CUSTOM menus obtained by pressing !£, or via the programmable MENU or TMENU commands, and any menu containing a variable (e.g. pressing @%EQ% in the ROOT menu [menu number 75] yields 'EQ' !©even in program mode.)

!%VARNAME% = 'varname' ‰.

Applies to the VAR menu, CUSTOM menus obtained by pressing !£, (the left shift of the Hkey)or via the programmable MENU or TMENU commands, and any menu containing a variable (e.g. pressing !%EQ% in the ROOT menu [menu number 75] yields 'EQ' ‰ even in program mode.)

The function !Î(the left shift of the `key) is really the LASTARG key in RPL mode. It performs the LASTARG command EXCEPT when pressed immediately after pressing a ‰ or %PURGE% key, including a !varname ‰. If !Îis pressed immediately after a ‰, then the PREVIOUS contents of the variable

are returned (if any). If !Îis pressed immediately after a %PURGE% key is pressed, then the purged variable AND ITS CONTENTS are both returned to the stack. This does not apply if the variable is a directory object. The purpose of these exceptions is to prevent disaster: If you accidentally PURGE a variable, or wipe out a variable’s

contents by accidentally STOing something else into it, you can recover simply by pressing !Î.

Pressing %EDIT% by itself is the same as pressing ˜: it performs an EDITB. !%EDIT% performs an EDIT.

In the ROOT SOLVR ( @& Ï, %ROOT%, %SOLVR% ), pressing %VARNAME% performs 'varname' K. @%VARNAME% performs 'varname' ! ©. !%VARNAME% solves for varname in the current equation.

Pressing ANY key (other than $) while the solver is working causes it to display the current solution interval until a solution is found. Watching the progress of the solver this way lets you avoid waiting for solutions when the process is not converging.

Menus that contain modetoggling keys (e.g. the MIS C menu ( !°L%MODES% L%MISC% ) handle the shift

keys in a special way. Pressing !%MODE% sets the corresponding system flag (unrelated to the previous or subsequent presence or absence of the “bullet” in the menu key), and in program mode types nn SF where nn is the

flag number. @%MODE% performs the opposite: nn CF. Modes that do not behave this way (e.g. STK and CMD) are not programmable modes.

Keyboard Shortcuts G3