A case against the x<>y key

[Les Bell]

(05-09-2015 10:49 PM)hansklav Wrote:  I was a bit irritated when I didn’t obtain the given solution in one try, so I tried again. When I got the same answer the second time I took my Prime and entered the calculation in Textbook Mode. This confirmed my previous answers, different from the manual’s.
[...]
P.S. the correct answer to eight decimals is 1657.00894809

I just banged through that calculation near-subconsciously, without giving any thought to the alleged evils of x<>y, and got the same answer.

Which manual did you take this from? I'd like to see the original. But I suspect you're massively over-complicating something that is really quite simple, and possibly misinterpreting the original example.