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 modeOur variable list contains variables p1, z1, Q, R, and α . We will use command PURGE to delete variable p1. Press I@PURGE@ J@@p1@@ `. 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@ „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 modeAssuming 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:
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