HP 50g HP 50g_user's manual_English_HDPSG49AEM8.pdf - Page 46

Using function PURGE in the stack in RPN mode, To delete two variables simultaneously, say variables

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You can use the PURGE command to erase more than one variable by placing their names in a list in the argument of PURGE. For example, if now we wanted to purge variables R and Q, simultaneously, we can try the following exercise. Press : I @PURGE@ „ä³J @@@R J @@@Q!@@ At this point, the screen will show the following command ready to be executed: To finish deleting the variables, press `. The screen will now show the remaining variables: Using function PURGE in the stack in RPN mode Assuming that our variable list contains the variables p1, z1, Q, R, and α. We will use command PURGE to delete variable p1. Press ³ @@p1@@ ` I @PURGE@. The screen will now show variable p1 removed: To delete two variables simultaneously, say variables R and Q, first create a list (in RPN mode, the elements of the list need not be separated by commas as in Algebraic mode): J „ä³ @@@R Q!@@ ` Then, press I@PURGE@ use to purge the variables. Additional information on variable manipulation is available in Chapter 2 of the calculator's user's guide. Page 2-15

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Page 2-15
You can use the PURGE command to erase more than one variable by
placing their names in a list in the argument of PURGE.
For example, if
now we wanted to purge variables
R
and
Q
, simultaneously, we can try
the following exercise.
Press :
I
@PURGE@
„ä³J
@@@R!@@
™‚í³J
@@@Q!@@
At this point, the screen will show the following command ready to be
executed:
To finish deleting the variables, press
`
.
The screen will now show the
remaining variables:
Using function PURGE in the stack in RPN mode
Assuming that our variable list contains the variables
p1, z1, Q, R,
and
α
.
We will use command PURGE to delete variable
p1
.
Press
³
@@p1@@
`
I
@PURGE@
.
The screen will now show variable
p1
removed:
To delete two variables simultaneously, say variables
R
and
Q
, first create
a list (in RPN mode, the elements of the list need not be separated by
commas
as in Algebraic mode):
J „ä³
@@@R!@@
™³
@@@Q!@@
`
Then, press
I
@PURGE@
use to purge the variables.
Additional information on variable manipulation is available in Chapter 2
of the calculator’s user’s guide.