Approximate pi to 24 digits via keyboard

[Dieter]

(01-30-2015 08:38 PM)Gilles Wrote:  It works with the 48SX - 49 -50.
Don't work with the 15C LE

Right, the 15C should return three additional digits, as mentioned in my other post. Since the third digit is zero, you'll see only two (5,9 E–10). ;-)

(01-30-2015 08:38 PM)Gilles Wrote:  I noticed that the CASIO FX-602P and 603P returns exactly 0. for the SIN with the predefine PI constant. Both 602P and 603P have some curious rounding process (ex : sqrt(2) * sqrt (2) returns exactly 2)

Sounds a bit like "don't confuse the student and return what he expects". #-)
Do the Casios also return a plain 2 if you calculate 1,414213562 * 1,414213562 manually, i.e. without using the sqrt-key?
Or a plain zero for sin 3,141592653 resp. ...54?

Dieter