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wanyshenger

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9Â¥: Originally posted by ¶Ï½£²ÐÑ© at 2015-07-30 13:08:44
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x =

(K1*a + K2*b + 2*K2*c)/(K1 - K2) - (2*RootOf(z^4 + z^3*(K1 + K2) - z^2*(c - K1*K2) - z*((K1*a)/2 + (K2*b)/2 + K1*c + K2*c) - K1*K2*c - (K1*K2*b)/2 - (K1*K2*a)/2, z)[1]^3)/(K1 - K2) + (2*c*RootOf(z^4 + z^3*(K1 + K2) - z^2*(c - K1*K2) - z*((K1*a)/2 + (K2*b)/2 + K1*c + K2*c) - K1*K2*c - (K1*K2*b)/2 - (K1*K2*a)/2, z)[1])/(K1 - K2) - (2*K2*RootOf(z^4 + z^3*(K1 + K2) - z^2*(c - K1*K2) - z*((K1*a)/2 + (K2*b)/2 + K1*c + K2*c) - K1*K2*c - (K1*K2*b)/2 - (K1*K2*a)/2, z)[1]^2)/(K1 - K2)
(K1*a + K2*b + 2*K2*c)/(K1 - K2) - (2*RootOf(z^4 + z^3*(K1 + K2) - z^2*(c - K1*K2) - z*((K1*a)/2 + (K2*b)/2 + K1*c + K2*c) - K1*K2*c - (K1*K2*b)/2 - (K1*K2*a)/2, z)[2]^3)/(K1 - K2) + (2*c*RootOf(z^4 + z^3*(K1 + K2) - z^2*(c - K1*K2) - z*((K1*a)/2 + (K2*b)/2 + K1*c + K2*c) - K1*K2*c - (K1*K2*b)/2 - (K1*K2*a)/2, z)[2])/(K1 - K2) - (2*K2*RootOf(z^4 + z^3*(K1 + K2) - z^2*(c - K1*K2) - z*((K1*a)/2 + (K2*b)/2 + K1*c + K2*c) - K1*K2*c - (K1*K2*b)/2 - (K1*K2*a)/2, z)[2]^2)/(K1 - K2)
(K1*a + K2*b + 2*K2*c)/(K1 - K2) - (2*RootOf(z^4 + z^3*(K1 + K2) - z^2*(c - K1*K2) - z*((K1*a)/2 + (K2*b)/2 + K1*c + K2*c) - K1*K2*c - (K1*K2*b)/2 - (K1*K2*a)/2, z)[3]^3)/(K1 - K2) + (2*c*RootOf(z^4 + z^3*(K1 + K2) - z^2*(c - K1*K2) - z*((K1*a)/2 + (K2*b)/2 + K1*c + K2*c) - K1*K2*c - (K1*K2*b)/2 - (K1*K2*a)/2, z)[3])/(K1 - K2) - (2*K2*RootOf(z^4 + z^3*(K1 + K2) - z^2*(c - K1*K2) - z*((K1*a)/2 + (K2*b)/2 + K1*c + K2*c) - K1*K2*c - (K1*K2*b)/2 - (K1*K2*a)/2, z)[3]^2)/(K1 - K2)
(K1*a + K2*b + 2*K2*c)/(K1 - K2) - (2*RootOf(z^4 + z^3*(K1 + K2) - z^2*(c - K1*K2) - z*((K1*a)/2 + (K2*b)/2 + K1*c + K2*c) - K1*K2*c - (K1*K2*b)/2 - (K1*K2*a)/2, z)[4]^3)/(K1 - K2) + (2*c*RootOf(z^4 + z^3*(K1 + K2) - z^2*(c - K1*K2) - z*((K1*a)/2 + (K2*b)/2 + K1*c + K2*c) - K1*K2*c - (K1*K2*b)/2 - (K1*K2*a)/2, z)[4])/(K1 - K2) - (2*K2*RootOf(z^4 + z^3*(K1 + K2) - z^2*(c - K1*K2) - z*((K1*a)/2 + (K2*b)/2 + K1*c + K2*c) - K1*K2*c - (K1*K2*b)/2 - (K1*K2*a)/2, z)[4]^2)/(K1 - K2)
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USAwaitforme
11Â¥2015-07-30 13:35:01
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WWJ1991

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5Â¥: Originally posted by ¶Ï½£²ÐÑ© at 2015-07-30 08:34:25
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syms z a b c  K1 K2 x y;
a=1 ;b=1 ;c=1  ;K1=1 ;K2=1; %±ÈÈçÒÑÖªËüÃǵÄÖµ£¬ÒªÇóx£¬y¡£ÄÇô°ÑÇ°ÃæµÄ×¢ÊÍÈ¥µôÔÙÔËÐм´¿É£¬ËüÃǵÄÖµÒ²¿ÉÒÔ×Ô¼ºÉ趨¡£
=solve(x*sqrt(c+0.5*(x+y))/(a-x)==K1 , y*sqrt(c ...

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syms z a b c  K1 K2 x y;
a=1 ;b=1 ;c=1  ;K1=1 ;K2=1;
[x,y]=solve(x*sqrt(c+0.5*(x+y))/(a-x)==K1 , y*sqrt(c+0.5*(x+y))/(b-y)==K2,x,y);
x=double(x)
y=double(y)
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12Â¥2015-07-31 18:25:10
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