(x+y)^r -:(2*x*y)+ (x^r)+(y^r) 2006/12/12, Roger Hui <[EMAIL PROTECTED]>:
But one counterexample does make a disproof. In this case there are two, yours and Helgason's. ----- Original Message ----- From: Ralph G Selfridge <[EMAIL PROTECTED]> Date: Monday, December 11, 2006 5:39 pm Subject: Re: [Jgeneral] exp(y). sin(y) and accuracy. > x=.3 y=.3 r=.2 > (x^r)+y^r 18 (x+y)^r 36 > One example does not a proof make > > On Sun, 10 Dec 2006, Björn Helgason wrote: > > > x=.2 > > y=.2 > > r=.2 > > (x^r)+(y^r) > > 8 > > (x+y)^r > > 16 > > > > 2006/12/9, Chris Burke <[EMAIL PROTECTED]>: > >> > >> The mistake is the assumption that: > >> > >> (x^r)+(y^r) is the same as (x+y)^r ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
-- Björn Helgason, Verkfræðingur Fugl&Fiskur ehf, Þerneyjarsund 23, Box 127 801 Grímsnes ,t-póst: [EMAIL PROTECTED] Skype: gosiminn, gsm: +3546985532 Landslags og skrúðgarðagerð, gröfuþjónusta http://groups.google.com/group/J-Programming Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans góður kennari getur stigið á tær án þess að glansinn fari af skónum /|_ .-----------------------------------. ,' .\ / | Með léttri lund verður | ,--' _,' | Dagurinn í dag | / / | Enn betri en gærdagurinn | ( -. | `-----------------------------------' | ) | (\_ _/) (`-. '--.) (='.'=) `. )----' (")_(")
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