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a=2.856;
m^2=1+(a+1)^2/(a*tan(x1))^2;
tan(x2)=tan(x1)/(1+a*(1+tan(x1))*tan(x1));
tan(x2)=(m^2*sin(x3+x2)*sin(x3+x2)-1)*cot(x3+x2)/(m^2*((a+1)/2-sin(x3+x2)*sin(x3+x2))-1);

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clc
clear
format long
syms x2 x3
a=2.856;
x1=pi/20:pi/20:pi/2;
m=sqrt(1+(a+1)^2./(a*tan(x1)).^2);
%y=solve('tan(x2)-tan(x1).*tan(x1)=0',x2)
%´Ë´¦Óõã³Ë²»¶Ô
x2=subs(solve('tan(x2)=tan(x1)/(1+a*(1+tan(x1))*tan(x1))',x2));
Y=subs(solve('tan(x2)=(m^2*sin(x3+x2)*sin(x3+x2)-1)*cot(x3+x2)/(m^2*((a+1)/2-sin(x3+x2)*sin(x3+x2))-1)',x3));
Y'
ANSS=vpa(Y',5)

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ans =
                 2*conj(atan(z)) + 2*pi*conj(k) - 1865493290623271/18014398509481984
                  2*conj(atan(z)) + 2*pi*conj(k) - 1303509379291781/9007199254740992
                 2*conj(atan(z)) + 2*pi*conj(k) - 5694820166643655/36028797018963968
                 2*conj(atan(z)) + 2*pi*conj(k) - 5665006901631221/36028797018963968
                   2*conj(atan(z)) + 2*pi*conj(k) - 666077805630529/4503599627370496
                 2*conj(atan(z)) + 2*pi*conj(k) - 2383599045855489/18014398509481984
                 2*conj(atan(z)) + 2*pi*conj(k) - 7999487286693907/72057594037927936
                 2*conj(atan(z)) + 2*pi*conj(k) - 6005511245412801/72057594037927936
                2*conj(atan(z)) + 2*pi*conj(k) - 6842333245735417/144115188075855872
2*conj(atan(z)) + 2*pi*conj(k) - 3478821848754559/162259276829213363391578010288128
ANSS =
        2.0*conj(atan(z)) + 6.2832*conj(k) - 0.10356
        2.0*conj(atan(z)) + 6.2832*conj(k) - 0.14472
        2.0*conj(atan(z)) + 6.2832*conj(k) - 0.15806
        2.0*conj(atan(z)) + 6.2832*conj(k) - 0.15724
         2.0*conj(atan(z)) + 6.2832*conj(k) - 0.1479
        2.0*conj(atan(z)) + 6.2832*conj(k) - 0.13232
        2.0*conj(atan(z)) + 6.2832*conj(k) - 0.11102
       2.0*conj(atan(z)) + 6.2832*conj(k) - 0.083343
       2.0*conj(atan(z)) + 6.2832*conj(k) - 0.047478
2.0*conj(atan(z)) + 6.2832*conj(k) - 2.144*10^(-17)
4Â¥2014-01-07 12:32:35
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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dingd

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1£ºx1=0ʱ»áµ¼Ö·ÖĸΪ0µÄÇé¿ö£¨(a+1)^2/(a*tan(x1))^2£©£¬ÎÞ·¨¼ÆËãÏÂÈ¥£»
2£ºÖÜÆÚÐÔº¯Êý£¬²»¼ÓÔ¼Êøx3»áÓжàÖµ¡£
2Â¥2014-01-07 09:58:10
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815292578

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2Â¥: Originally posted by dingd at 2014-01-07 09:58:10
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1£ºx1=0ʱ»áµ¼Ö·ÖĸΪ0µÄÇé¿ö£¨(a+1)^2/(a*tan(x1))^2£©£¬ÎÞ·¨¼ÆËãÏÂÈ¥£»
2£ºÖÜÆÚÐÔº¯Êý£¬²»¼ÓÔ¼Êøx3»áÓжàÖµ¡£

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3Â¥2014-01-07 10:05:03
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

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