HP 48GII

Full Command and Function Reference 3-57
EQW
Type: Command
Description: Opens Equation Writer, where you can edit an expression.
Puts an object into the Equation Writer.
Access: …µEQW
(Non-programmable access is via ˜ when there is an algebraic object on the stack. To start a
new equation when not entering a program object, press …³)
Input/Output:
Level 1/Argument 1 Level 1/Item 1
exp
1
→
exp
2
See also: EDIT, EDITB, VISIT, VISITB
EQ→
Type: Command
Description: Equation to Stack Command: Separates an equation into its left and right sides.
If the argument is an expression, it is treated as an equation whose right side equals zero.
Access: !°TYPE LEQ→ ( °is the left-shift of the Nkey).
Input/Output:
Level 1/Argument 1 Level 2/Item 1 Level 1/Item 2
'symb
1
=symb
2
'
→
'symb
1
' 'symb
2
'
z
→
z 0
'name'
→
'name' 0
'x_unit'
→
'x_unit' 0
'symb'
→
'symb' 0
See also: ARRY→, DTAG, LIST→, OBJ→, STR→
ERASE
Type: Command
Description: Erase PICT Command: Erases PICT, leaving a blank PICT of the same dimensions.
Access: …µ
ERASE
Input/Output: None
See also: DRAW
ERR0
Type: Command
Description: Clear Last Error Number Command: Clears the last error number so that a subsequent execution
of ERRN returns # 0h, and clears the last error message.
Access: !°LL
ERROR ERR0 ( °is the left-shift of the Nkey).
Input/Output: None
See also: DOERR, ERRM, ERRN
ERRM
Type: Command
Description: Error Message Command: Returns a string containing the error message of the most recent
calculator error.
ERRM returns the string for an error generated by DOERR. If the argument to DOERR was 0,
the string returned by ERRM is ‘Interrupted’.
Access: !°LL
ERROR ERRM ( °is the left-shift of the Nkey).