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chen_1934

Ìú³æ (СÓÐÃûÆø)

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2Â¥2014-09-30 20:03:49
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hank612

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¾ßÌåҪʲôÌõ¼þÎÒ²»ÖªµÀ,²»ºÃÒâ˼ӦÖú.
½«ÇúÏß²ÎÊý»¯, y=y(t), x=x(t), ÄãµÄÎÊÌâÊÇ:
ÔÚ epsilon, thetaºÜСµÄʱºò, ÊÇ·ñ»áÓÐ ½â (t1, t2) ²¢ÇÒ t1-t2²»Ç÷ÓÚÁã.

´ÓÖ±¹ÛÉÏ¿´À´(ͼ2), Ò»¸ö²»ÔÚ¸½½üµÄµã(x(t2), y(t2)) Ðýתtheta½ÇºóÒª½Ó½ü
(x(t1),y(t1)), ÆðÂë , ¾ÍÊÇ˵,°ë¾¶Òª¹»´ó,²Å»áÔÚºÜС½Ç¶ÈÐýתʱ²úÉú×ã¹»´óµÄÎ»ÒÆ,ÓëÔ­ÇúÏ߲ſÉÄÜÏཻ.
We_must_know. We_will_know.
3Â¥2014-10-04 07:27:03
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chen_1934

Ìú³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
3Â¥: Originally posted by hank612 at 2014-10-04 07:27:03
¾ßÌåҪʲôÌõ¼þÎÒ²»ÖªµÀ,²»ºÃÒâ˼ӦÖú.
½«ÇúÏß²ÎÊý»¯, y=y(t), x=x(t), ÄãµÄÎÊÌâÊÇ:
y(t_1)+\epsilon=-x(t_2)\sin\theta+y(t_2)\cos\theta, x(t_1)=x(t_2)\cos\theta+y(t_2)\sin\thetaÔÚ epsilon, thetaºÜСµÄʱ ...

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