Post Reply 
Accuracy and the power function
02-23-2014, 09:06 PM
Post: #16
RE: Accuracy and the power function
(02-23-2014 02:19 PM)Dieter Wrote:  I see. So this sticky bit avoids some errors caused by simple truncation.

No, it is necessary to implement round to even. It allows to know whether you're in the 'half-way' situation, where the lost digits are exactly 500.
The 10/13 calculators (41,15) did not implement round-to-even, but simple round up (well 'away from zero'). Whether the lost digits are 500 or 500+ makes no difference there, see Tomas' examples.
I know nothing of the accuracy of the 15-digit functions I'm afraid.
Werner
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
Accuracy and the power function - Dieter - 02-16-2014, 02:43 PM
RE: Accuracy and the power function - Werner - 02-23-2014 09:06 PM



User(s) browsing this thread: 1 Guest(s)