¼ÐÃD: 1 = 0.999.....? [¥´¦L¥»¶]
§@ªÌ:
Amuro ®É¶¡: 2011-10-19 22:15 ¼ÐÃD: 1 = 0.999.....?
http://zh.wikipedia.org/wiki/0.999%E2%80%A6#.E4.BB.A3.E6.95.B0
§Ú±µ¨üø¨ì
§@ªÌ:
bread1997 ®É¶¡: 2011-10-19 22:17
¦³«§°ÝÃD?= =
§@ªÌ:
Amuro ®É¶¡: 2011-10-19 22:19
1=1
0.999...=0.999...
1µL±o=¨ä¥L¼Æ, 1=1
§@ªÌ:
bread1997 ®É¶¡: 2011-10-19 22:21 ¼ÐÃD: ¦^´_ #3 Amuro ªº©«¤l
¦P¶ê©P²v¤@¼Ë
§@ªÌ:
Amuro ®É¶¡: 2011-10-19 22:22 ¼ÐÃD: ¦^´_ #4 bread1997 ªº©«¤l
¶ê©P²v«Y¶ê©P²v, µL¤H¸Ü¹L¶ê©P²v = ¥ô¦ó¤@Ó¼Æ
Ã伿¨ì¤@¼Ë©O?
§@ªÌ:
bread1997 ®É¶¡: 2011-10-19 22:25 ¼ÐÃD: ¦^´_ #5 Amuro ªº©«¤l
¼Æ¾Ç¾¤Á¿¤@ӳ̱µªñªºªñ¦üÈ´N±o,0.9999999999999999............Ê\¥[¥ô¦ó¼Æ³£ø·|«Y1,¦]¬°®Ú¥»µLºÉ,¦P¼Ë¶ê©P²vpøºÉ,Ê\ÂIø«Y¤@Óµ´¹ï¶ê§Î,¦ý«Y³£¥i¥H¸Ñ°µ¶ê
§@ªÌ:
¤¯¤@Ó ®É¶¡: 2011-10-19 22:30
³oÓ³Q°Q½×«Ü¤[¤F(´XÓ¥@¬ö)
ͬOı±o¤£À³¸Ó¥´¤Wµ¥¸¹°Õ
»¡0.99999....¬ùµ¥©ó1ÍÁÙ¥i¥H±µ¨ü
§@ªÌ:
Amuro ®É¶¡: 2011-10-19 22:40 ¼ÐÃD: ¦^´_ #7 ¤¯¤@Ó ªº©«¤l
¥un¦³"¬ù"´N±o, 0.9¬ùµ¥©ó1³£¦P¼Ë¦X²z
¦n¸Þ²§¬J¦a¤è«Y, 0.999... «á±¦³µLÓ9, ¦ý´Nºâ¦³µLÓ9, Ê\³£øµ¥©ó1
Ê\¥u«YµL±µªñ"1"©OÓ¼Æ, ¦ý¥Ã»·³£¦¨¬°ø¨ì1
¤£¹L Ê\±ø¦¡»ª¦ü«Y¥¿½T
(
0.999...
= 0.111.... * 9
= 1/9 * 9
= 1 )
¥i¯à´`Àô¤p¼ÆÓconcept¥»¨´N«Y¿ù
§@ªÌ:
¤¯¤@Ó ®É¶¡: 2011-10-19 22:42 ¼ÐÃD: ¦^´_ #8 Amuro ªº©«¤l
¨ºÓ0.111111111¥»¨Ó´N¬O¬ùµ¥©ó1/9
§@ªÌ:
WisH°ª¹F ®É¶¡: 2011-10-19 22:52
µL°O¿ù©OºØ¼Æ«Y·L¿n¤À
´N«Y«ü©Ò¿×ªº1¥i¯à¥u«Y¤j·§¼Æ
¬°¤F¨D§óºëºÉ, ´N¥X²{©OÃþ¼Æ¤F
(À³¸ÓµL¿ù§a)
§@ªÌ:
UniCorn ®É¶¡: 2011-10-19 23:04
ì©«¥Ñ WisH°ª¹F ©ó 2011-10-19 10:52 PM µoªí
µL°O¿ù©OºØ¼Æ«Y·L¿n¤À
þùئ³ d ©M in («ä
ì©«¥Ñ WisH°ª¹F ©ó 2011-10-19 10:52 PM µoªí
¬°¤F¨D§óºëºÉ, ´N¥X²{©OÃþ¼Æ¤F
___¤H¤`...
[ ¥»©«³Ì«á¥Ñ UniCorn ©ó 2011-10-19 23:09 ½s¿è ]
§@ªÌ:
issac999 ®É¶¡: 2011-10-19 23:07
ì©«¥Ñ WisH°ª¹F ©ó 2011-10-19 22:52 µoªí
µL°O¿ù©OºØ¼Æ«Y·L¿n¤À
´N«Y«ü©Ò¿×ªº1¥i¯à¥u«Y¤j·§¼Æ
¬°¤F¨D§óºëºÉ, ´N¥X²{©OÃþ¼Æ¤F
(À³¸ÓµL¿ù§a)
ì©«¥Ñ UniCorn ©ó 2011-10-19 23:04 µoªí
¨ºùئ³ d ©M in («ä
___¤H¤`...
§@ªÌ:
WisH°ª¹F ®É¶¡: 2011-10-19 23:11
d©Odø«Y¼g¦¡¥ý¥Î¶Ü
(¥»¤H¤W§¹·L¿n¤À³£ø«Y¦n©ú, »{¯u·Q¾Ç)
§@ªÌ:
UniCorn ®É¶¡: 2011-10-19 23:25
ì©«¥Ñ WisH°ª¹F ©ó 2011-10-19 11:11 PM µoªí
d©Odø«Y¼g¦¡¥ý¥Î¶Ü
(¥»¤H¤W§¹·L¿n¤À³£ø«Y¦n©ú, »{¯u·Q¾Ç)
¨º¬O differentiation ¦P integration ªºÂ²ºÙ...
¼g¦¡¥Îªº¬O d/dx ¦P ¡ìdx
·L¿n¤À = differentiation and integration
§@ªÌ:
WisH°ª¹F ®É¶¡: 2011-10-19 23:31
ic
¦ýp¼Æ®É, ¤£¬OnÓ§O¥Î0.999999¦P1.1111¨Ópªº¶Ü????
§@ªÌ:
Amuro ®É¶¡: 2011-10-19 23:43
´`Àô¤p¼Æ¥i¯à«Y¿ù
¥H§Ú©Òª¾ ¨ä¤¤¤@ºØ´`Àô¤p¼Æ¤j·§«Y0.XXXXX... µLÓX
#9´£¨ì0.111... ¨Æ¹ê¤W¤j¬ùµ¥©ó1/9
¦ý¨Ì®a»ª¦ü¦h¼Æ¤H³£±NÊ\²z¸Ñ¦¨ 0.111... µ¥©ó 1/9
http://en.wikipedia.org/wiki/Repeating_decimal
0.111...«á±¦³´X¦hÓ1? µL©w¦³?
¦pªG"1"¬J¼Æ¶q¦³,ËÝÊ\¥u«Y¤@Ó¤p¼Æ,µ´¹ïøµ¥©ó1/9
¦pªG¦³µLÓ1
0.11111111111111111111111111111111111...(¤U²¤µL¦r)
©OӼƫY«}¯u«Yµ¥©ó1/9?
©w«Y¯ÂºéµL±µªñ1/9?
¨ä¹ê¤HÃþ¦n¦ü³sµL«YÉA³¥¼Æ³£¥¼ª¾
±N²z½×«Ø¥ß°_¤@¼Ë¥¼ª¾¬J³¥¤W, ¦³µL¥i¯à©¥©O?
§Úøª¾
§@ªÌ:
WisH°ª¹F ®É¶¡: 2011-10-19 23:49
@¤H´M¨ý
½Ð¸Ñµª
§@ªÌ:
Amuro ®É¶¡: 2011-10-19 23:51 ¼ÐÃD: ¦^´_ #17 WisH°ª¹F ªº©«¤l
nprove "µL"¨ä¹ê«Y¦³
§@ªÌ:
paul22247 ®É¶¡: 2011-10-20 00:35
§A¦V¬Y¥Øªº¦a¦æ,¸g¹L¥ªx s¬J®É¶¡,§A¦æ¥ª¤@¥b,¦A¸g¹Lx/2 s¬J®É¶¡,§A¦æ®I³Ñ§CªG¥b¤@¥b¬J¤@¥b,¦]¬°©Od¤@¥b«Y¦³µLËݦh¥÷,§A¥Ã»·³£ø¥i¯à¥h¨ì¥ô¦ó¦a¤è!
µ²ªG§A¦æø¦æ¨ì§r?¦æ¨ìar ma¶Ì¥J
µLËݦh¶µ+®I¥i¥H=¦³¬J¼Æ¬[
øÃÑmathsø¦n«Y¨ìÁV°Õ
¤@¦¦³¤HÃÒ¥ª1/10+1/10^2+1/10^3.......+1/10^n µLËݦh¶µ¬J©M=1/9
0.1111111111....¤j¬ù=1/9
§A´N¯u«Yon999999999
§@ªÌ:
UniCorn ®É¶¡: 2011-10-20 11:42
ì©«¥Ñ
Amuro ©ó 2011-10-19 11:43 PM µoªí
´`Àô¤p¼Æ¥i¯à«Y¿ù
¥H§Ú©Òª¾ ¨ä¤¤¤@ºØ´`Àô¤p¼Æ¤j·§«Y0.XXXXX... µLÓX
#9´£¨ì0.111... ¨Æ¹ê¤W¤j¬ùµ¥©ó1/9
¦ý¨Ì®a»ª¦ü¦h¼Æ¤H³£±NÊ\²z¸Ñ¦¨ 0.111... µ¥©ó 1/9
http://en.wikipedia.org/wiki/Repeating_dec ...
0.1111111111....«Y=1/9,¦Û¤v¥Î long division ºCºC¸Õ
0.9999999...=1 À³¸Ó¬O¦]¬°¨âªÌ¥u®t¤@ÓµL¤Öªº¼Æ§a...
¥Ñ©ó¤£ª¾µL¬O¦h¤Ö,©Ò¥H°²³]®t¶Z¤Ö±o¨¬¥HµLµø
e.g.·í¦Ñ®v»¡1¤p®É«á¦¬¨÷®É,§A«ç¯àªÖ©w¬O¦b²Ä3600s ®É¦¬¨÷?
¦Ó¤£¬O3600.00000...1s ©Î 3599.999999...s ?
³o¤]¬O¦]¬°®t¶Z¤Ö±o¨¬¥HµLµø
(¥H¤W¥u¬O§Úªº²z¸Ñ
§@ªÌ:
Amuro ®É¶¡: 2011-10-20 20:24
ì©«¥Ñ paul22247 ©ó 2011-10-20 00:35 µoªí
§A¦V¬Y¥Øªº¦a¦æ,¸g¹L¥ªx s¬J®É¶¡,§A¦æ¥ª¤@¥b,¦A¸g¹Lx/2 s¬J®É¶¡,§A¦æ®I³Ñ§CªG¥b¤@¥b¬J¤@¥b,¦]¬°©Od¤@¥b«Y¦³µLËݦh¥÷,§A¥Ã»·³£ø¥i¯à¥h¨ì¥ô¦ó¦a¤è!
µ²ªG§A¦æø¦æ¨ì§r?¦æ¨ìar ma¶Ì¥J
µLËݦh¶µ+®I¥i¥H=¦³¬J ...
x¬í¦æ¤@¥b, 2x¬í«}¦æ«{¦¨¬q¸ô
¥Î¤@¥b¤@¥b¤@¥bËÝp¬J¸Ü
x + x/2 + x/2^2 + x/2^3 + x/2^4 +......+ x/2^n
¦pªG§A«Yn¤@¥b¤@¥bËݦ檺½T«Y»ÝnµL®É¶¡¥ý¥h¨ì¬Y¦a
§A¦æ¬J¸ôµ{µLÁYµu, ÁöµM¤£Â_±µªñ¥Øªº¦a¦ý¥²¶·nµL®É¶¡¥ý¥i¥H¨ì¹F
¥Îgraph¾¤ªí¹F´N«YËÝ http://en.wikipedia.org/wiki/Asymptote
ÂI¸Ñ¥ò«Y¥h¨ì¬Y¦a?¦]¬°¨ì¥ª1 - 0.999...®É,¶ZÂ÷¬J¼ÆȦn¦ü«Ylimitøª¾ÉA³¥,Á`¤§«Y³Ì±µªñ0¬J¼Æ,¦Ó©Ò»Ý®É¶¡«Yx/2^?¬í
¤§«á¬Jpºâ¤è¦¡¦P·§©À§Ú¥¼¾Ç¹L, ¦ý ¤@ӳ̵u¬J¶ZÂ÷¥Îunknown¬J®É¶¡¦æ «Y¦³¥i¯à¦æ±o§¹
Á`¤§§Ú¥Ã»·¥u·|»{¬°1 = 1 øµ¥©ó¨ä¥L¼Æ
¦P®I§A«§¨ÆËÝ¿E°Ê?
§@ªÌ:
bread1997 ®É¶¡: 2011-10-20 20:25 ¼ÐÃD: ¦^´_ #19 paul22247 ªº©«¤l
Ãäӹ˺ò?
§@ªÌ:
paul22247 ®É¶¡: 2011-10-20 21:40
ËݧA«Yn°í«ùø«HÉN¤H¥i¥H§ïÅܧA
¤¤¤G¯f
§@ªÌ:
Amuro ®É¶¡: 2011-10-20 21:51 ¼ÐÃD: ¦^´_ #23 paul22247 ªº©«¤l
°í«ù©Î°õµÛø¥Nªí¤¤¤G¯f
¤¤¤G¯f¨ãÅé·N«ä¤j¬ù«Y¤Û·Q©Î¦ÛºÙ¦Û¤v¦³¯S®í¯à¤O, ©ÎªÌ«Y¬@±Ï¦a²y¬J^¶¯
¤S©ÎªÌ§êMK ¥H¬°¦Û¤vӼ˰÷´c´N¦n«¬
¤S©ÎªÌ§ê¼ô±x¬YºØ¤å¤Æ ¦ý¨ä¹ê¦Û¤v³£ø«Y¦n©ú
¥H¤W°Ñ·Ówiki
....°Ú ¦n¦ü¥ò¦³ ·|§ê¦¨¼ô¬J¦æ°Ê
¥ò¦³¥ý¥Í§A§NÀRd
[ ¥»©«³Ì«á¥Ñ Amuro ©ó 2011-10-20 21:52 ½s¿è ]
§@ªÌ:
´N¬O¤p¦Ì ®É¶¡: 2011-10-20 21:56 ¼ÐÃD: ¦^´_ #24 Amuro ªº©«¤l
§Ú¬Ý§AÁÙ¤£²M·¡¤¤¤G¯f¥þ±ªº·N«ä°Úzzz
§@ªÌ:
Amuro ®É¶¡: 2011-10-20 21:57 ¼ÐÃD: ¦^´_ #25 ´N¬O¤p¦Ì ªº©«¤l
Explain please
§@ªÌ:
´N¬O¤p¦Ì ®É¶¡: 2011-10-20 22:00 ¼ÐÃD: ¦^´_ #26 Amuro ªº©«¤l
http://wiki.komica.org/wiki3/?%E4%B8%AD%E4%BA%8C%E7%97%85
¹À¡A¨ä¹ê³oÓ¦rªº©w¸q»á¼sªº
n§Ú¸ÑÄÀ¥X¨Óªº¸Ü§Ú·Q¦³ÂI§xÃø
ÁÙ¬On¥h¦Û¤v¥hÅé·|§a (ÂÛ
Åwªï¥úÁ{ ¾÷°Ê¦P·ù Gundam HK (http://gundamhk.com/) |
Powered by Discuz! 5.0.0 |