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¹ØÓÚmatlab»Í¼£¡ÖØÉÍ£¡ [m1,m2,m3,m4,m5,m6,m7,m8,m11,m12,m13,m14,m21,m22,m31,m32,m33,m34]=dsolve('Dm1=m11-m1','Dm2=m1-m2','Dm3=m2-m3','Dm4=m3-m4','Dm5=m4-m5','Dm6=m5-m6','Dm7=m6-m7','Dm8=m22-m8','Dm11=m6-m11','Dm12=m11-m2','Dm13=m2-m4','Dm14=m4-m6','Dm21=m22-m1','Dm22=m1-m22','Dm31=m7-m8','Dm32=m8-m3','Dm33=m3-m5','Dm34=m5-m7','t') matlabÀï½âÒÔÉÏ·½³Ì×飬µÃµ½m1 = 5*Sum(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)*exp(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)*t)*C[_a],_a = 1 .. 6)+C12+Sum(exp(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)*t)*C[_a],_a = 1 .. 6)+10*Sum(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)^3*exp(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)*t)*C[_a],_a = 1 .. 6)+10*Sum(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)^2*exp(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)*t)*C[_a],_a = 1 .. 6)+5*Sum(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)^4*exp(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)*t)*C[_a],_a = 1 .. 6)+Sum(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)^5*exp(RootOf(7+21*_Z+35*_Z^2+35*_Z^3+21*_Z^4+7*_Z^5+_Z^6,index = _a)*t)*C[_a],_a = 1 .. 6) m2=¡¡ ¡¡ ÇëÎÊÈçºÎ½«m1ºÍt µÄ¹ØÏµÍ¼»³öÀ´£¿ÓÃplot»µÄʱºòÌáʾplot(m1,t) ??? Error using ==> plot Conversion to double from sym is not possible.ÇëÎÊÎÒÈçºÎ»£¬ÖØÉÍ£¡£¡ [ Last edited by csfn on 2008-12-29 at 20:24 ] |
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