A case against the x<>y key

[hansklav]

(05-10-2015 01:13 AM)Paul Dale Wrote:  There is only one point in the formula where you overflow a four level stack working left to right (45 to the six sevenths term).

That's why it’s wise to start such a calculation from within the innermost parentheses using an RPN calculator with only four stack levels.

Quote:In SSIZE8 on my trusty 34S, there is no issue at all.

True, but you still have to count the number of stack levels you use to be sure that your answer is correct (because there is no stack overflow sensing built into the WP 34S). So to avoid that even on the WP 34S or WP 31S in SSIZE8-mode I personally would start from within the innermost parentheses.

Hans