What is VisualPick:
Select a level on the stack using the mouse (left click ) and press the VisualPick button.
Data is sent to stack level 1.
What is R^:
R^ is Roll Up 4 levels.
It is the inverse of RDN ( Roll Down 4 levels )
What is RDN3:
RDN3 is roll down 3 levels
What is RDN:
Suppose that we have the following data in the first four levels of the stack:
4: 15
3: 20
2: 25
1: 30
We execute RDN. The result is:
4: 30
3: 15
2: 20
1: 25
Data in levels 2 to 4 are moved down one level.
Data in level 1 is put on level 4.
When RDN3 is used it is the same of RDN with only the first three levels.
Data in levels 2 and 3 are moved down one level.
Data in level 1 is put on level 3
Roll Up:
If we have in the first 4 levels of stack:
4: 30
3: 15
2: 20
1: 15
and we press R^, we obtain:
4: 15
3: 20
2: 15
1: 30
Data in the first 3 levels are moved up 1 level.
Data in level 4 is put on level 1.