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yani          ¦^ÂЩó: 2006/5/27 ¤W¤È 08:15:16                        

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Xiao          ¦^ÂЩó: 2006/5/27 ¤U¤È 01:05:43                        

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§Ú¬O¨Ó¶Ãªº ¡G¡]          ¦^ÂЩó: 2006/5/27 ¤U¤È 03:55:18                        

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§Ú¬O¨Ó¶Ãªº ¡G¡]          ¦^ÂЩó: 2006/5/27 ¤U¤È 04:06:15                        

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x=3
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ºâ¤£ºâ¬O¤G¤¸¤@¦¸Áp¥ß¤èµ{¦¡¡H

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ºâ¤£ºâ¬O¤T¤¸¤@¦¸Áp¥ß¤èµ{¦¡¡H

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Xiao          ¦^ÂЩó: 2006/5/27 ¤U¤È 10:43:12                        

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meathu          ¦^ÂЩó: 2006/5/28 ¤U¤È 12:21:28                        


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jeff          ¦^ÂЩó: 2017/12/14 ¤U¤È 05:59:02                        

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§J³Ò´Ð          ¦^ÂЩó: 2018/12/21 ¤U¤È 07:15:26                        

¤ä«ùyani§gªº¬Ýªk¡A¤£µM3x+0xyzabc=3Ãø¹D¬O¤»¤¸¤»¦¸¤èµ{¦¡¶Ü¡H¤£¶È´X¤¸µLªk§P©w¡A³s
´X¦¸¤]µLªk§P©w¤F¡C
¤£¹L§Ú¨Ã¤£»{¬°°ê¤p·|»¡¶ê©P²v"µ¥©ó"3.14¡AÀ³¸Ó¬O"¨ú3.14¬°¶ê©P²vªº·§²¤­È"¡A©Î¥Õ¸Ü
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benice          ¦^ÂЩó: 2018/12/22 ¤W¤È 06:37:26                        


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¨S¥²­n§â´X¦ó(¤èµ{¹Ï§Î)²o§è¶i¨Ó¡C

¦¡¤l 3(2x + 4y) = 4(x + 3y) ¦³¨â­ÓÅÜ¼Æ x »P y¡A
³Ì°ª¦¸¶µ¬°¤@¦¸¡A©Ò¥H¥¦¬O¤G¤¸¤@¦¸¤èµ{¦¡¡C

ª`·N¡A¦¡¤l 3(2x + 4y) = 4(x + 3y) ¤Æ¨ì³Ì²³q±`¼g¦¨ x = 0¡A
¦ý¨ä¹ê§Ú­Ì¬O¬Ù²¤¤F y¡A¥¿½Tªº¼gªk¬O¡ix = 0, y ¬°¥ô·N¼Æ¡j¡A
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§J³Ò´Ð          ¦^ÂЩó: 2018/12/22 ¤W¤È 11:00:00                        

benice§g¡G©Ò¥H3(2x + 4y) + xyz = 4(x + 3y) + xyz¬O¤T¤¸¤T¦¸¤èµ{¦¡¶Ü¡H
benice          ¦^ÂЩó: 2018/12/23 ¤W¤È 07:52:59                        

¦^ §J³Ò´Ð¡G

3(2x + 4y) + xyz = 4(x + 3y) + xyz
µ¥»ù©ó¡ix = 0¡Ay »P z ¬°¥ô·N¼Æ¡j¡A
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§J³Ò´Ð          ¦^ÂЩó: 2018/12/23 ¤U¤È 12:06:35                        

¦^benice§g¡G
3­Ó¬Û¦PªºÅܼƬۭ¼¬O¤T¦¸¶µ¡A¨Ò¦px*x*x=x^3
3­Ó¤£ºÉ¬Û¦PªºÅܼƬۭ¼¤]¬O¤T¦¸¶µ¡A¨Ò¦px*x*y=x^2y©Îx*y*z=xyz
À³¸Ó¬O³o¼Ëªº§a¡H

¦]¦¹¨Ì±zªº¨£¸Ñ¡A3(2x + 4y) + xyz = 4(x + 3y) + xyz¤]À³¸Ó¬O¤T¤¸"¤T¦¸"¤èµ{¦¡¡A¦Ó
¤£¬O¤T¤¸¤@¦¸¤èµ{¦¡¡A±z»{¬°¦b¤U»¡±o¹ï¤£¹ï©O¡H
benice          ¦^ÂЩó: 2018/12/23 ¤U¤È 03:10:05                        

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µ¥¸¹«e«áªº xyz ¤¬¬Û®ø¥h¡A©Ò¥H³Ì°ª¦¸¶µ¬°¤@¦¸¡A¦]¦¹¬°¤@¦¸¤èµ{¦¡¡C

ÁöµM xyz ¶µ®ø¥h¡A¦ý¦¡¤l¦³´X­ÓÅܼơA¤èµ{¦¡´N©w¸q¥X´X¤¸ªºÃö«Y¦¡¡A
¤£¯àÀH·N¼W´î¡A©Ò¥H¬°¤T¤¸¤èµ{¦¡¡C


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https://zh.wikipedia.org/zh-tw/¤G¤¸关¨t
https://en.wikipedia.org/wiki/Binary_relation

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https://en.wikipedia.org/wiki/Finitary_relation
benice          ¦^ÂЩó: 2018/12/23 ¤U¤È 03:42:57                        

¦^ §J³Ò´Ð¡G

¤èµ{¦¡ 3(2x + 4y) + xyz = 4(x + 3y) + xyz ªº¸Ñ¶°¦X
¬O {(x,y,z)¡ýx = 0¡Ay,z ¬°¹ê¼Æ} ©Î {(0,y,z)¡ýy,z ¬°¹ê¼Æ}¡A
¦Ó«D {x¡ýx = 0} ©Î {0}¡C
§J³Ò´Ð          ¦^ÂЩó: 2018/12/23 ¤U¤È 10:35:57                        

benice§g¡G
§Úı±o§Ú­Ì¦ü¥G¬OÂû¦PÀnÁ¿¤F¡C
§Ú³o¼Ë»¡¦n¤F¡AºJ¶}«e­±ªºµo¨¥³£¤£½Í¡B·í§@¨S»¡¹L¡BÂk¹s¡A
½Ð°Ý±z»{¬°x*y*z=1¬O¤T¤¸´X¦¸¤èµ{¦¡¡H
benice          ¦^ÂЩó: 2018/12/24 ¤W¤È 07:44:44                        

¦^ §J³Ò´Ð¡G

1.
§Ú¦b 2018/12/23 ¤U¤È 03:10:05 ¦^ÂФå´N¦^µª§A¤F¡A
¥u¬O¤À¶}»¡©ú¦Ó¤w¡A¥ý»¡©ú¤@¦¸¡A¦A»¡©ú¤T¤¸¡C

(¨º½g¸Ì­±¦C¥Xªº°Ñ¦Òºô­¶ »P 2018/12/23 ¤U¤È 03:42:57 ¦^ÂФå
¬O¦b±j½Õ¡yÅܼƤ£¯àÀH·N¼W´î¡z¡C)


2.
x*y*z = 1 ¬O¤T¤¸¤T¦¸¤èµ{¦¡

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x + x*y*z - x*y*z = 1 ¬O¤T¤¸¤@¦¸¤èµ{¦¡ (¦PÃþ¶µ¦X¨Ö¡Ax*y*z ®ø¥h)
µ¥»ù©ó x = 1¡Ay »P z ¬°¥ô·N¼Æ

x + x*x*x - x*x*x = 1 ¬O¤@¤¸¤@¦¸¤èµ{¦¡ (¦PÃþ¶µ¦X¨Ö¡Ax*x*x ®ø¥h)
µ¥»ù©ó x = 1
Lopez          ¦^ÂЩó: 2018/12/24 ¤U¤È 01:22:16                        

xyz = 1 ¬O¤T¤¸¤T¦¸¤èµ{¦¡

¤ÀªR:
xyz = 1
xyz - 1 = 0
µ¥¦¡ªº¥ªÃä¬O3Åܼƪº¦h¶µ¦¡.
¦¡¤¤¦³3­ÓÅܼÆ,¦]¦¹ºÙ¬°"¤T¤¸" ,
²Ä1¶µ = xyz , ¦¸¼Æ = 1+1+1 = 3
²Ä2¶µ = - 1 , ¦¸¼Æ = 0
¾ãÅ骺¦¸¼Æ±Ä³Ì°ª¦¸ = max { 3 , 0 } = 3
¬G¬°¤T¦¸¤èµ{¦¡,¦]¦¹:
xyz = 1 ¬O¤T¤¸¤T¦¸¤èµ{¦¡

Ãö©ó"¦¸¼Æ"ªº©w¸q,ºû°ò¦Ê¬ì¤¤¦³©w¸q(¤@¯ëªº½Ò¥»©w¸q¤]¬Û¦P).
¨Ò¦p,ºû°ò¦Ê¬ì¤¤ªº¨ä¤¤¤@¨Ò:
XY³ + 2X + 5 - 0.3c ¬O¤T¤¸¥|¦¸¥|¶µ¦¡
Lopez          ¦^ÂЩó: 2018/12/24 ¤U¤È 01:32:31                        

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