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function matlabsky

% By LaterComer of MATLAB¼¼ÊõÂÛ̳

% See also http://www.matlabsky.com

% Contact me matlabsky@gmail.com

% Modifid 2010-05-14 11:02:15

%

phi=pi/3; % ¸ù¾ÝÐèÒªÐÞ¸Ä

[e,fval]=fzero(@(e)objfun(e,phi),rand)



function f=objfun(e,phi)

[K,E] = ellipke(e); % ÍêÕûÍÖÔ²»ý·Ö¹«Ê½

f=(e^2*E-2*(1-e^2)*K)/(2-e^2)/E-cos(phi); % Ä¿±êº¯Êý
»Ø¸´´ËÂ¥

» ÊÕ¼±¾ÌûµÄÌÔÌûר¼­ÍƼö

²ÄÁÏ+ÐÂÄÜÔ´+´ß»¯+ÍâÓï condensed matter physics

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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zxczxc0417

ľ³æ (ÕýʽдÊÖ)


e =



    0.9657





fval =



  5.5511e-016
2Â¥2010-05-27 03:05:24
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С¸Õ¸Õ

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¡ï¡ï¡ï¡ï¡ï ÎåÐǼ¶,ÓÅÐãÍÆ¼ö

ѧϰÁË  Ð»Ð»
3Â¥2010-05-27 10:54:10
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ylzhang508

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лл°¡ Õâ¸öfzeroÄܽ⸴ÊýµÄ·½³ÌÂð

[ Last edited by ylzhang508 on 2010-5-27 at 16:40 ]
4Â¥2010-05-27 16:32:30
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tower598

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physicsWL

гæ (ÕýʽдÊÖ)


phi=pi/3;
e=linspace(0,1-0.001,1000);
[K,E] = ellipke(e);
F=(e.^2.*E-2*(1-e.^2).*K)./(2-e.^2)./E-cos(phi);
F=abs(F);
[value,index]=min(F);
e(index)
7Â¥2010-05-28 10:29:51
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liyansong

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8Â¥2010-06-11 10:25:58
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klcmx


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9Â¥2010-06-12 13:35:20
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xhsh

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ÒªÌù¾ÍÌùËã·¨£¬ÓÃÈκÎÓïÑÔ¶¼ÄÜÇó½â³öÀ´µÄ¡£
11Â¥2010-06-14 14:46:11
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zxczxc0417

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Originally posted by xhsh at 2010-06-14 14:46:11:
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12Â¥2010-06-14 21:59:08
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yangyang_722

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jiasen1980

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