Could someone do a calculation on a real 71B?

[Gerson W. Barbosa]

(01-16-2017 11:14 AM)Thomas Okken Wrote:  

(01-16-2017 10:31 AM)EdS2 Wrote:  It's more enlightening to ask for the sin of a number just below pi, because then you get more digits of pi.

Neat! I never realized that.
It works for the number just above pi, too; you just get the ten's complement of those extra digits:

Code:

10.00000000000E-10
-4.10206761537E-10
------------------
 5.89793238463E-10

I guess the point is that the calculator performs argument reduction using an extended-precision approximation of pi. Next question, for extra credit: how many digits?

That's an old trick (see http://www.hpmuseum.org/forum/post-18529.html#pid18529), but I wasn't aware of the 10's complement part. Thanks!

Gerson.