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Crossed Trough[Crossed Trough]
 
 
 
∑〖数学〗
2005-2-5 13:30
<APPLET CODE="http://mathworld.wolfram.com/Live.class" CODEBASE="live" ARCHIVE="http://mathworld.wolfram.com/live.jar" ALIGN=MIDDLE WIDTH=300 HEIGHT=300 ALT="Crossed trough"> <PARAM NAME="input_file" VALUE="http://mathworld.wolfram.com/crosstr.m"> <PARAM NAME="input_archive" VALUE="http://mathworld.wolfram.com/zip/crosstr.zip">
[Ctrl+A 全部选择 提示:你可先修改部分代码,再按运行]
The crossed trough is the
surface
(1)
The coefficients of its
first fundamental form
are
(2)
(3)
(4)
and of the
second fundamental form
are
(5)
(6)
(7)
The
Gaussian
and
mean curvatures
are
(8)
(9)
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