Which HP calculator had "The New Accuracy" first?

[Nihotte(lma)]

(06-22-2020 04:59 PM)Nihotte(lma) Wrote:  I've tested on my HP10bII+, too

729^33.5 / 3^201 -1
--> gives 0 [ with 729^33.5 ÷ ( 3^201 ) - 1 = ]

But, LN 729 x 33.5 ÷ ( LN 3 x 201 ) - 1 = gives -5E-12 (and curiously 1.00000000 in DISP . mode before applying - 1 = )

If i try it on the less recent hp35s and hp12c+ (in RPN mode this time) it gives the same results by using the LN function. Otherwise, on the hp35s with the LOG available function, the result is 0 !!