E********r
发帖数: 99 | 1 一个paraboloid,
f(u,v) = a*u^2 + 2*b*u*v + c*v^2,
在(u,v)平面上转过一个角度，就可以得到一个简化的表达式：
f(u,v) = m*u^2 + n*v^2,
请问该怎么求这个转角？
谢谢。 |
|
h*********6
发帖数: 2469 | 2 【 以下文字转载自 Physics 讨论区 】
发信人: huamei91106 (哼哼), 信区: Physics
标 题: 10个包子求几篇SID会刊上的文章
发信站: BBS 未名空间站 (Thu Aug 21 20:37:27 2014, 美东)
(1)“A general theory of light recycling with light pipes/tunnels and their
applications in LED illuminators”，George Ouyang and Kenneth Li, SID Digest
XXXVIII, pp951, (2007);
(2)“LED light recycling with recycling collars,” George Ouyang and Kenneth
Li, SID Digest XXXIX, pp2091, (2008);
(3)“LED light recycling: some general design guidelines,” George Ouyang,
Leonard Zug... 阅读全帖 |
|
h*********6
发帖数: 2469 | 3 【 以下文字转载自 EE 讨论区 】
发信人: huamei91106 (哼哼), 信区: EE
标 题: 10个包子求几篇SID会刊上的文章 (转载)
发信站: BBS 未名空间站 (Thu Aug 21 20:39:28 2014, 美东)
发信人: huamei91106 (哼哼), 信区: Physics
标 题: 10个包子求几篇SID会刊上的文章
发信站: BBS 未名空间站 (Thu Aug 21 20:37:27 2014, 美东)
(1)“A general theory of light recycling with light pipes/tunnels and their
applications in LED illuminators”，George Ouyang and Kenneth Li, SID Digest
XXXVIII, pp951, (2007);
(2)“LED light recycling with recycling collars,” George Ouyang and Kenneth
Li, SID Digest XXXIX, ... 阅读全帖 |
|
h*********6
发帖数: 2469 | 4 (1)“A general theory of light recycling with light pipes/tunnels and their
applications in LED illuminators”，George Ouyang and Kenneth Li, SID Digest
XXXVIII, pp951, (2007);
(2)“LED light recycling with recycling collars,” George Ouyang and Kenneth
Li, SID Digest XXXIX, pp2091, (2008);
(3)“LED light recycling: some general design guidelines,” George Ouyang,
Leonard Zugby and Kenneth Li, SID Digest XXXX, pp1756, (2009);
(4)“Dual paraboloid reflector illumination system for digital cinema,”
George... 阅读全帖 |
|
