The simplest way of deleting variables is by using function PURGE. This
function can be accessed directly by using the TOOLS menu (I), or by
using the FILES menu „¡@@OK@@ .
Using function PURGE in the stack in Algebraic mode
Our variable list contains variables p1, z1, Q, R, and . We will use
command PURGE to delete variable p1. Press I @PURGE@ J@@ @@ `.
The screen will now show variable p1 removed:
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@ „ä³ J@@@R!@@ ™ ‚í ³ J@@@ !@@
At this point, the screen will show the following command ready to be
To finish deleting the variables, press `. The screen will now show the
Using function PURGE in the stack in RPN mode
Assuming that our variable list contains the variables p1, z1, Q, R, and .
We will use command PURGE to delete variable p1. Press ³@@ @@ `
I @PURGE@. The screen will now show variable p1 removed: