|
ÊÁѤÃÊÁÒªÔ¡ | ¤ÙèÁ×Í¡ÒÃãªé | ÃÒª×èÍÊÁÒªÔ¡ | »¯Ô·Ô¹ | ¢éͤÇÒÁÇѹ¹Õé | ¤é¹ËÒ |
|
à¤Ã×èͧÁ×ͧ͢ËÑÇ¢éÍ | ¤é¹ËÒã¹ËÑÇ¢é͹Õé |
#1
|
|||
|
|||
àÅ¢ªÕé¡ÓÅѧ͹ѹµì (Infinite exponentials) ªèÇ´éǤÃѺ
x^x^x^... = 6 ;x › 0 ¨§ËÒ¤èÒx
·ÓÂѧä§ËÃͤÃѺ ¼Áâ§èàÅ¢¹Ð¤ÃѺ¤Ô´äÁèÍÍ¡ |
#2
|
||||
|
||||
$$x^{x^{x^...}}=6$$
$$x^6=6$$ $$x=\pm\sqrt[6]6$$
__________________
¤³ÔµÈÒʵÃì ¤×Í ÀÒÉÒÊÒ¡Å ¤³ÔµÈÒʵÃì ¤×Í ¤ÇÒÁÊǧÒÁ ¤³ÔµÈÒʵÃì ¤×Í ¤ÇÒÁ¨ÃÔ§ µÔ´µÒÁªÁ¤ÅÔ»ÇÕ´ÕâÍä´é·Õèhttp://www.youtube.com/user/poperKM |
#3
|
|||
|
|||
ÁѹÁÒÍÂèèÒ§äÃËÃͤÃѺ
|
#4
|
||||
|
||||
$x^{x^{x^{..}}} = 6 $
«Ö觵ÑÇ·Õè¡¡ÓÅѧÍÂÙè Áѹ¡ç¤×Í $x^{x^{x^{x^{..}}}} $ àÅÂä´é $x^{(x^{x^{..}})}=x^6$ 24 ÁԶعÒ¹ 2012 22:24 : ¢éͤÇÒÁ¹Õé¶Ù¡á¡éä¢áÅéÇ 3 ¤ÃÑé§, ¤ÃÑé§ÅèÒÊØ´â´Â¤Ø³ polsk133 |
#5
|
||||
|
||||
Åͧá¡éÍÕ¡ÊͧÊÁ¡ÒùÕé´Ù¤ÃѺ
$$x^{x^{x^{.^{.^.}}}}=4$$ áÅÐ $$x^{x^{x^{.^{.^.}}}}=2$$ |
#6
|
|||
|
|||
\pm \sqrt[4]{4}
¡Ñº \pm \sqrt[2]{2} ÃÖà»ÅèÒ¤ÃѺ áµèµÍºä´éáµèºÇ¡à¾ÃÒÐ x\succ 0 ãªèÃÖà»ÅèÒ¤ÃѺ 24 ÁԶعÒ¹ 2012 22:42 : ¢éͤÇÒÁ¹Õé¶Ù¡á¡éä¢áÅéÇ 1 ¤ÃÑé§, ¤ÃÑé§ÅèÒÊØ´â´Â¤Ø³ prem2538 |
#7
|
||||
|
||||
¢Í¶ÒÁ¼ÙéÃÙéàÅ硹éͤÃѺ
¼ÁʧÊÑÂ⨷Âì¢é͹ÕéÁÒ¹Ò¹ÅФÃѺÇèÒ ·ÓäÁÁѹäÁèä´é ÍÔ¹¿Ô¹ÔµÕé Áѹä´é¤èÒ¤§·Õèä´é´éÇÂËÃͤÃѺ ¡¡ÓÅѧä»àÃ×èÍÂæ ÍÂèÒ§ ÃÒ¡·Õè 4 ·Õèà»ç¹ºÇ¡¢Í§ 6 ¡¡ÓÅѧä»àÃ×èÍÂæ Áѹ¨Ðä´é¤èÒ¤§µÑÇËÃͤÃѺ à¾ÃÒеÑÇ¡¡ÓÅѧÁѹ¡çÁÒ¡¡ÇèÒ 1 ·Ø¡µÑÇ |
#8
|
||||
|
||||
¤ÇÒÁ¨ÃÔ§ ⨷Âì
$\displaystyle{x^{x^{x^{x^{...}}}} = 6}$ $\displaystyle{x^{x^{x^{x^{...}}}} = 4}$ äÁèÁդӵͺ¹Ð¤ÃѺ à¾ÃÒÐÇèÒàÁ×èÍàÃÒ¾Ô¨Òóҿѧ¡ìªÑ¹ $f(x) = x^{x^{x^{x^{...}}}}$ àÁ×èÍ $x > 0$ â´Âãªéá¤Å¤ÙÅÑÊáÅéÇ ¤èҢͧ $f(x)$ ¨ÐÍÂÙè㹪èǧ $(0,e]$ à·èÒ¹Ñ鹹ФÃѺ
__________________
àÁ×èÍäÃàÃÒ¨Ðà¡è§àÅ¢¹éÒÒÒÒÒÒ ~~~~ T T äÁèà¡è§«Ñ¡·Õ ·Óä§´Õ 27 ÁԶعÒ¹ 2012 01:21 : ¢éͤÇÒÁ¹Õé¶Ù¡á¡éä¢áÅéÇ 1 ¤ÃÑé§, ¤ÃÑé§ÅèÒÊØ´â´Â¤Ø³ -InnoXenT- |
#9
|
||||
|
||||
#8 á·¹ x=2 ÁѹäÁèä´é ÍÔ¹¿Ô¹ÔµÕé ËÃͤÃѺ
|
#10
|
||||
|
||||
#8 µ¡Å§¢é͹ÕéäÁèÁդӵͺËÃͤÃѺ ??
§§ÁÒ¡ÍÐ |
#11
|
|||
|
|||
ãËé $y=x^{x^{x^{x...}}}$
¨Ðä´éÇèÒ $y=x^y$ ËÃ×Í $lny=ylnx$ ´Ô¿ä´é $\frac{1}{y}dy= \frac{y}{x}dx+lnxdy$ ËÃ×Í $\frac{dy}{dx}= \frac{y^2}{x(1-ylnx)}$ «Öè§$ylnx=lny$ ÁÕ¤èÒÁÒ¡ÊØ´,µèÓÊØ´à¡Ô´àÁ×èÍ$\frac{y^2}{x(1-lny)}=0$ ä´é y=0 áµèá·¹ã¹ÊÁ¡ÒÃä´é$0=x^0$ ËÃ×Í $0=1$äÁèà»ç¹¨ÃÔ§ ÍÂèÒ§¹ÕéäËÁ¤ÃѺ |
#12
|
||||
|
||||
⨷ÂìÁѹäÁè¶Ù¡µÑé§áµèáááÅéǤÃѺ
|
ËÑÇ¢éͤÅéÒ¤ÅÖ§¡Ñ¹ | ||||
ËÑÇ¢éÍ | ¼ÙéµÑé§ËÑÇ¢éÍ | Ëéͧ | ¤ÓµÍº | ¢éͤÇÒÁÅèÒÊØ´ |
Infinite Series +++ | Suwiwat B | »ÑËÒ¤³ÔµÈÒʵÃì Á.»ÅÒ | 9 | 07 Á¡ÃÒ¤Á 2011 20:02 |
»ÑËÒà¡ÕèÂǡѺ infinite set ¤ÃѺ | mandog | ¤³ÔµÈÒʵÃìÍØ´ÁÈÖ¡ÉÒ | 3 | 11 µØÅÒ¤Á 2010 19:10 |
¶ÒÁàÃ×èͧ cardinality ¢Í§ infinite set ¤ÃѺ ÁÕ»ÑËÒ | boorapas | ¤³ÔµÈÒʵÃìÍØ´ÁÈÖ¡ÉÒ | 2 | 09 ¡ØÁÀҾѹ¸ì 2008 08:57 |
»ÑËÒªÔ§ÃÒ§ÇÑÅ¢éÍ·Õè 22: Infinite Series | warut | ¤³ÔµÈÒʵÃìÍØ´ÁÈÖ¡ÉÒ | 4 | 02 ¾ÄȨԡÒ¹ 2006 05:35 |
»ÑËÒªÔ§ÃÒ§ÇÑÅ¢éÍ·Õè 3: Infinite Products | warut | ¤³ÔµÈÒʵÃìÍØ´ÁÈÖ¡ÉÒ | 10 | 16 Á¡ÃÒ¤Á 2006 15:05 |
|
|