What's today's most accurate production retail calculator?

[walter b]

(02-17-2014 10:28 AM)Steve Simpkin Wrote:  Oddly enough the only production HP models to achieve a perfect result of 9 (with 10 digit resolution) are the Kinpo made HP-9S and HP-30s models which where not designed by HP at all.

Watch it! A result of 9 doesn't have to be perfect in this case. For finite precision calculators (as all of the test objects are), the perfect result depends on their precision. IIRC, Dieter posted once about that topic.

d:-/