num1
enter
num2
action
answer
RPN Explained
7
8
9
/
4
5
6
*
1
2
3
-
0
.
back
+
+/-
sqrt
**2
dec
Enter
Clear
RPN Explained
7
8
9
/
4
5
6
*
1
2
3
-
0
.
back
+
+/-
sqrt
**2
dec
Enter
Clear