哺乳宙斯之羊的角[Cornucopia] - 达人(其实～我是卧底，来自外星) - 5D艺术网

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2005/02/01 | 哺乳宙斯之羊的角[Cornucopia]
类别(∑〖数学〗) | 评论(0) | 阅读(31) | 发表于 13:55: <APPLET CODE="http://www.wolfram.com/Live.class" CODEBASE="live" ARCHIVE="http://www.wolfram.com/live.jar" ALIGN=MIDDLE WIDTH=300 HEIGHT=300 ALT="Cornucopia"> <PARAM NAME="input_file" VALUE="http://www.wolfram.com/cornucop.m"> <PARAM NAME="input_archive" VALUE="http://www.wolfram.com/zip/cornucop.zip">
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The surface given by the parametric equations
(1)

(2)

(3)

The coefficients of the first fundamental form are
(4)

(5)

(6)

and of the second fundamental form are
(7)

(8)

(9)

The Gaussian and mean curvatures are given by
(10)

(11)

and the principal curvatures are
(12)

(13); 0

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