Enter key ignored?

[push]

Is there any difference entering:
0
Enter
6
enter
2
/
1
+
*

and

0
Enter
6
enter
2
/
enter
1
+
*

I am getting the same result. Is it a stack overlow?

[rprosperi]

On what machine? It matters for this question....

[teenix]

For the 67

Code:



         Stack  X Y Z T
0               0 0 0 0
Enter           0 0 0 0
6               6 0 0 0
enter           6 6 0 0
2               2 6 0 0
/               3 0 0 0
1               1 3 0 0
+               4 0 0 0
*               0 0 0 0

and

0               0 0 0 0
Enter           0 0 0 0
6               6 0 0 0
enter           6 6 0 0
2               2 6 0 0
/               3 0 0 0
enter           3 3 0 0
1               1 3 0 0
+               4 0 0 0
*               0 0 0 0

cheers

Tony

[brouhaha]

In traditional HP RPN, ENTER disabled stack lift, so while ENTER duplicates X into Y, pushing Y and Z into Z and T, a number keyed in immediately after ENTER does not lift the stack again.

Most calculators that use traditional RPN have a manual appendix describing stack lift disable, and enumerate what operations do it.

RPL.calculators (28, 48, 49, 50) do not work the same way.

[John Keith]

(10-19-2023 03:08 AM)brouhaha Wrote:  RPL.calculators (28, 48, 49, 50) do not work the same way.

Specifically, if there is an open command line (i.e. you are typing stuff in), Enter evaluates the command line. If there is no command line, Enter duplicates the object on stack level 1. If the stack is empty, pressing Enter gives a "Too Few Arguments" error.

[John Garza (3665)]

and let's not mention the weirdness of the 9100...

-J