Brain Burp Rounding??
Dipperstein, Michael email (remove spam text)
> From: Alan B. Pearce [RL.AC.UK] A.B.Pearce
> > x = 0.9(repeating)
> >Multiply both sides by 10:
> > 10x = 9.9(repeating)
> >Subtract x from both sides:
> The fallacy in this argument is that at the end x->1, as any repeating
> number is not exact.
I don't understand where the fallacy lies. A repeating number *is* exact as
long as it isn't truncated.
1/3 is exactly .3 (repeating)
1/3 is not exactly .3333333 or .3333333333 or any truncated version.
Along that line here's another simple Junior High School algebra proof that 1 =
1/3 = .3 repeating
multiply both sides by 3
(1/3)*3 = 3 * (.3 repeating)
1 = .9 repeating
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
See also: www.piclist.com/techref/index.htm?key=brain+burp+rounding
You must be a member of the
piclist mailing list
(not only a www.piclist.com member) to post to the