±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 504  |  »Ø¸´: 5
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

oldskin

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

[½»Á÷] ¡¾ÇóÖú¡¿ÇóÖú£ºÈçºÎmatlab»­Èý¸ö±äÁ¿µÄÒþº¯ÊýͼÐΣ¿

ÇóÖú£ºÈçºÎmatlab»­Èý¸ö±äÁ¿µÄÒþº¯ÊýͼÐΣ¿

ÇóÖú£ºÈçºÎmatlab»­Èý¸ö±äÁ¿µÄÒþº¯ÊýͼÐΣ¿
-Z^2+3X^2+Y^2-8XY=6µÄͼÐÎÓ¦¸ÃÔõô»­ÄØ£¿

¶àлÁË£¡
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

ÊÀ½çÉÏÓÐÈýÖÖÈË,»áÊýÊýµÄºÍ²»»áÊýÊýµÄÈËÉúËÄ´óÀÖÊÂ:¸¯°Ü¹ä½ÖDZˮ´ò»ú
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yeyunxiao

Ìú¸Ëľ³æ (СÓÐÃûÆø)

¡ï ¡ï ¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
0112358(½ð±Ò+2):¹ÄÀø½»Á÷£¬»¶Ó­³£À´³ÌÐò°æ
Â¥Ö÷ÓÃÖù×ø±ê»òÕßÇò×ø±êÊÔÊÔ, ½ö¹©²Î¿¼àÞ

Öù×ø±ê
x = r * cos(s)
y = r * sin(s)

´úÈë·½³Ì - z^2 + 3 * x^2 + y^2 - 8 * x * y = 6

ÇóµÃ r = sqrt( (6 + z^2) / ( 3 * ( cos(s) )^2 + ( sin(s) )^2 - 8 * sin(s) * cos(s) )

±àÖÆmatlab³ÌÐòÈçÏÂ
x = 'cos(s) * sqrt( (6 + z^2) / ( 3 * ( cos(s) )^2 + ( sin(s) )^2 - 8 * sin(s) * cos(s) ) )';
y = 'sin(s) * sqrt( (6 + z^2) / ( 3 * ( cos(s) )^2 + ( sin(s) )^2 - 8 * sin(s) * cos(s) ) )';
z = 'z';
ezsurf(x, y, z, [0, 2*pi, -60, 60]); axis equal;

[ Last edited by yeyunxiao on 2009-9-18 at 13:50 ]
4Â¥2009-09-18 13:49:27
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 6 ¸ö»Ø´ð

catqq

Í­³æ (СÓÐÃûÆø)

¡ï ¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
wangen994(½ð±Ò+1,VIP+0):¸Ðл²ÎÓë½»Á÷ 9-19 15:24
Ã²ËÆÕâ¸ö·½³Ì£¬¿ÉÒÔͨ¹ý°ÑÇúÃæÉϵĵãËã³öÀ´£¬È»ºó»­³öÀ´£¡
2Â¥2009-09-18 00:30:41
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

oldskin

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

Õâ¸öºÜÂé·³°¡£¡ÓÐûÓÐÖ±½ÓµÄ³ÌÐò°¡£¡¶àл°¡
ÊÀ½çÉÏÓÐÈýÖÖÈË,»áÊýÊýµÄºÍ²»»áÊýÊýµÄÈËÉúËÄ´óÀÖÊÂ:¸¯°Ü¹ä½ÖDZˮ´ò»ú
3Â¥2009-09-18 08:37:31
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

oldskin

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

ÎÒÒªµÄÊÇÖ±½Ó»­³öÀ´°¡  ²»ÊÇÓü«×ø±ê°¡  »¹ÊÇллÄã   Çë´ó¼Ò°ï棡
ÊÀ½çÉÏÓÐÈýÖÖÈË,»áÊýÊýµÄºÍ²»»áÊýÊýµÄÈËÉúËÄ´óÀÖÊÂ:¸¯°Ü¹ä½ÖDZˮ´ò»ú
5Â¥2009-09-18 18:02:19
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ±¾¿ÆË«·Ç²ÄÁÏ£¬¿ç¿¼Ò»Ö¾Ô¸»ªµç085801µçÆø£¬283Çóµ÷¼Á£¬ÈκÎרҵ¶¼¿ÉÒÔ +6 ֥ʿѩbaoo 2026-03-28 8/400 2026-03-29 08:16 by ËÉ»¨¸×1201
[¿¼ÑÐ] 352·Ö-085602-Ò»Ö¾Ô¸985 +4 º£Äɰٴ¨Ly 2026-03-29 4/200 2026-03-29 08:10 by fmesaito
[¿¼ÑÐ] 291Çóµ÷¼Á +3 Y-cap 2026-03-29 3/150 2026-03-29 07:34 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©Àí¹¤´óѧ±¾¿Æ211²ÄÁϹ¤³Ì294Çóµ÷¼Á +6 mikasaµÄΧ½í 2026-03-28 6/300 2026-03-29 01:32 by fmesaito
[˶²©¼ÒÔ°] ÕÐÊÕÉúÎïѧ/ϸ°ûÉúÎïѧµ÷¼Á +4 IceGuo 2026-03-26 5/250 2026-03-29 01:25 by griffith2014
[˶²©¼ÒÔ°] Çóµ÷¼Á 330·Ö 085600²ÄÁÏÓ뻯¹¤ +3 gqhhh 2026-03-22 3/150 2026-03-29 00:52 by 544594351
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á£¬Çóµ¼Ê¦ÊÕ +9 ÌìÌìºÃÔËÀ´Éϰ¶° 2026-03-24 10/500 2026-03-28 22:17 by chemzp
[¿¼ÑÐ] 283Çóµ÷¼Á +3 A child 2026-03-28 3/150 2026-03-28 15:41 by ms629
[¿¼ÑÐ] 346Çóµ÷¼Á Ò»Ö¾Ô¸070303Óлú»¯Ñ§ +3 Âܲ·ìÀÇà²Ë 2026-03-28 3/150 2026-03-28 14:11 by ÌÆãå¶ù
[¿¼ÑÐ] 340Çóµ÷¼Á +5 jhx777 2026-03-27 5/250 2026-03-28 04:18 by fmesaito
[¿¼ÑÐ] 070300»¯Ñ§Çóµ÷¼Á +4 Æð¸öÃûÕ¦ÕâôÄÑ 2026-03-27 4/200 2026-03-27 21:39 by 83503ËïÀÏʦ
[¿¼ÑÐ] ¿¼Ñе÷¼Á +9 СÀ¯ÐÂ±Ê 2026-03-26 9/450 2026-03-27 11:10 by ²»³Ôô~µÄ؈
[¿¼ÑÐ] Ò»Ö¾Ô¸¼ª´ó071010£¬316·ÖÇóµ÷¼Á +3 xgbiknn 2026-03-27 3/150 2026-03-27 10:36 by guoweigw
[¿¼ÑÐ] 284Çóµ÷¼Á +11 junqihahaha 2026-03-26 12/600 2026-03-27 04:37 by wxiongid
[¿¼ÑÐ] µ÷¼Á +4 èÖèÖyoyo 2026-03-26 4/200 2026-03-26 20:43 by fmesaito
[¿¼ÑÐ] ×Ü·Ö322ÇóÉúÎïѧ/Éú»¯Óë·Ö×Ó/ÉúÎïÐÅϢѧÏà¹Øµ÷¼Á +5 ÐdzÁuu 2026-03-26 6/300 2026-03-26 19:02 by macy2011
[¿¼ÑÐ] Öйú¿ÆÑ§ÔºÉîÛÚÏȽø¼¼ÊõÑо¿Ôº-¹âÏË´«¸Ð¿ÎÌâ×éÕÐÉú-Öйú¿ÆÑ§Ôº´óѧ¡¢ÉîÛÚÀí¹¤´óѧÁªÅà +5 YangTyu1 2026-03-26 5/250 2026-03-26 18:27 by èßäèßäѽ
[¿¼ÑÐ] 289Çóµ÷¼Á +17 ˶ÐǸ° 2026-03-23 17/850 2026-03-26 16:18 by ²»³Ôô~µÄ؈
[¿¼ÑÐ] ´ò¹ýºÜ¶à¾ºÈü£¬085406¿ØÖƹ¤³Ì300·Ö£¬Çóµ÷¼Á +3 askeladz 2026-03-26 3/150 2026-03-26 09:08 by ¸øÄãÄã×¢ÒâÐÝÏ¢
[¿¼ÑÐ] 309Çóµ÷¼Á +4 gajsj 2026-03-25 5/250 2026-03-26 00:27 by Dyhoer
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û