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Question: Can any one tell me why my equation not expanded term by term ?

Question:Can any one tell me why my equation not expanded term by term ?

salim-barzani 165 Maple 2021
multiplication syntax 2dmath simplify
October 18 2024
0

i use all code really sometime this is happen i can find each term seperatly without any factoring and collecting term i want all of them term by term i did all simplify code but i did't get result

> 

restart
> 

with(PDEtools)
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NULL
> 

with(Physics)
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with(SolveTools)
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undeclare(prime)

`There is no more prime differentiation variable; all derivatives will be displayed as indexed functions`

 (1)
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F := l((V(xi)^(1/(2*m)))^(4*m-2)*(V(xi)^(1/(2*m))*((1/4)*V(xi)^(1/(2*m))*(diff(V(xi), xi))^2/(m^2*V(xi)^2)+(1/2)*V(xi)^(1/(2*m))*(diff(diff(V(xi), xi), xi))/(m*V(xi))-(1/2)*V(xi)^(1/(2*m))*(diff(V(xi), xi))^2/(m*V(xi)^2))+(1/4)*(4*m+l-1)*(V(xi)^(1/(2*m)))^2*(diff(V(xi), xi))^2/(m^2*V(xi)^2)))*a+4*m((V(xi)^(1/(2*m)))^(4*m-2)*(V(xi)^(1/(2*m))*((1/4)*V(xi)^(1/(2*m))*(diff(V(xi), xi))^2/(m^2*V(xi)^2)+(1/2)*V(xi)^(1/(2*m))*(diff(diff(V(xi), xi), xi))/(m*V(xi))-(1/2)*V(xi)^(1/(2*m))*(diff(V(xi), xi))^2/(m*V(xi)^2))+(1/4)*(4*m+l-1)*(V(xi)^(1/(2*m)))^2*(diff(V(xi), xi))^2/(m^2*V(xi)^2)))*a+b[5]*(V(xi)^(1/(2*m)))^(8*m)+b[4]*(V(xi)^(1/(2*m)))^(6*m)+b[3]*(V(xi)^(1/(2*m)))^(6*m)+b[2]*(V(xi)^(1/(2*m)))^(4*m)+(1/2)*b[6]*(V(xi)^(1/(2*m)))^2*(diff(V(xi), xi))^2*(2*m-1)*(V(xi)^(1/(2*m)))^(-2+2*m)/(m*V(xi)^2)+2*(V(xi)^(1/(2*m)))^(2*m-1)*((1/4)*V(xi)^(1/(2*m))*(diff(V(xi), xi))^2/(m^2*V(xi)^2)+(1/2)*V(xi)^(1/(2*m))*(diff(diff(V(xi), xi), xi))/(m*V(xi))-(1/2)*V(xi)^(1/(2*m))*(diff(V(xi), xi))^2/(m*V(xi)^2))*m*b[6]+b[1]*(V(xi)^(1/(2*m)))^(2*m)-l*lambda = 0

l((V(xi)^((1/2)/m))^(4*m-2)*(V(xi)^((1/2)/m)*((1/4)*V(xi)^((1/2)/m)*(diff(V(xi), xi))^2/(m^2*V(xi)^2)+(1/2)*V(xi)^((1/2)/m)*(diff(diff(V(xi), xi), xi))/(m*V(xi))-(1/2)*V(xi)^((1/2)/m)*(diff(V(xi), xi))^2/(m*V(xi)^2))+(1/4)*(4*m+l-1)*(V(xi)^((1/2)/m))^2*(diff(V(xi), xi))^2/(m^2*V(xi)^2)))*a+4*m((V(xi)^((1/2)/m))^(4*m-2)*(V(xi)^((1/2)/m)*((1/4)*V(xi)^((1/2)/m)*(diff(V(xi), xi))^2/(m^2*V(xi)^2)+(1/2)*V(xi)^((1/2)/m)*(diff(diff(V(xi), xi), xi))/(m*V(xi))-(1/2)*V(xi)^((1/2)/m)*(diff(V(xi), xi))^2/(m*V(xi)^2))+(1/4)*(4*m+l-1)*(V(xi)^((1/2)/m))^2*(diff(V(xi), xi))^2/(m^2*V(xi)^2)))*a+b[5]*(V(xi)^((1/2)/m))^(8*m)+b[4]*(V(xi)^((1/2)/m))^(6*m)+b[3]*(V(xi)^((1/2)/m))^(6*m)+b[2]*(V(xi)^((1/2)/m))^(4*m)+(1/2)*b[6]*(V(xi)^((1/2)/m))^2*(diff(V(xi), xi))^2*(2*m-1)*(V(xi)^((1/2)/m))^(-2+2*m)/(m*V(xi)^2)+2*(V(xi)^((1/2)/m))^(2*m-1)*((1/4)*V(xi)^((1/2)/m)*(diff(V(xi), xi))^2/(m^2*V(xi)^2)+(1/2)*V(xi)^((1/2)/m)*(diff(diff(V(xi), xi), xi))/(m*V(xi))-(1/2)*V(xi)^((1/2)/m)*(diff(V(xi), xi))^2/(m*V(xi)^2))*m*b[6]+b[1]*(V(xi)^((1/2)/m))^(2*m)-l*lambda = 0

 (2)
> 

simplify(l((V(xi)^((1/2)/m))^(4*m-2)*(V(xi)^((1/2)/m)*((1/4)*V(xi)^((1/2)/m)*(diff(V(xi), xi))^2/(m^2*V(xi)^2)+(1/2)*V(xi)^((1/2)/m)*(diff(diff(V(xi), xi), xi))/(m*V(xi))-(1/2)*V(xi)^((1/2)/m)*(diff(V(xi), xi))^2/(m*V(xi)^2))+(1/4)*(4*m+l-1)*(V(xi)^((1/2)/m))^2*(diff(V(xi), xi))^2/(m^2*V(xi)^2)))*a+4*m((V(xi)^((1/2)/m))^(4*m-2)*(V(xi)^((1/2)/m)*((1/4)*V(xi)^((1/2)/m)*(diff(V(xi), xi))^2/(m^2*V(xi)^2)+(1/2)*V(xi)^((1/2)/m)*(diff(diff(V(xi), xi), xi))/(m*V(xi))-(1/2)*V(xi)^((1/2)/m)*(diff(V(xi), xi))^2/(m*V(xi)^2))+(1/4)*(4*m+l-1)*(V(xi)^((1/2)/m))^2*(diff(V(xi), xi))^2/(m^2*V(xi)^2)))*a+b[5]*(V(xi)^((1/2)/m))^(8*m)+b[4]*(V(xi)^((1/2)/m))^(6*m)+b[3]*(V(xi)^((1/2)/m))^(6*m)+b[2]*(V(xi)^((1/2)/m))^(4*m)+(1/2)*b[6]*(V(xi)^((1/2)/m))^2*(diff(V(xi), xi))^2*(2*m-1)*(V(xi)^((1/2)/m))^(-2+2*m)/(m*V(xi)^2)+2*(V(xi)^((1/2)/m))^(2*m-1)*((1/4)*V(xi)^((1/2)/m)*(diff(V(xi), xi))^2/(m^2*V(xi)^2)+(1/2)*V(xi)^((1/2)/m)*(diff(diff(V(xi), xi), xi))/(m*V(xi))-(1/2)*V(xi)^((1/2)/m)*(diff(V(xi), xi))^2/(m*V(xi)^2))*m*b[6]+b[1]*(V(xi)^((1/2)/m))^(2*m)-l*lambda = 0)

((V(xi)^((1/2)/m))^(4*m)*V(xi)*b[2]+((diff(diff(V(xi), xi), xi))*b[6]+V(xi)*b[1])*(V(xi)^((1/2)/m))^(2*m)+V(xi)*((b[3]+b[4])*(V(xi)^((1/2)/m))^(6*m)+l((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+4*m((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+b[5]*(V(xi)^((1/2)/m))^(8*m)-l*lambda))/V(xi) = 0

 (3)
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simplify(((V(xi)^((1/2)/m))^(4*m)*V(xi)*b[2]+((diff(diff(V(xi), xi), xi))*b[6]+V(xi)*b[1])*(V(xi)^((1/2)/m))^(2*m)+V(xi)*((b[3]+b[4])*(V(xi)^((1/2)/m))^(6*m)+l((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+4*m((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+b[5]*(V(xi)^((1/2)/m))^(8*m)-l*lambda))/V(xi) = 0)

((V(xi)^((1/2)/m))^(4*m)*V(xi)*b[2]+((diff(diff(V(xi), xi), xi))*b[6]+V(xi)*b[1])*(V(xi)^((1/2)/m))^(2*m)+V(xi)*((b[3]+b[4])*(V(xi)^((1/2)/m))^(6*m)+l((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+4*m((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+b[5]*(V(xi)^((1/2)/m))^(8*m)-l*lambda))/V(xi) = 0

 (4)
> 

numer(lhs(((V(xi)^((1/2)/m))^(4*m)*V(xi)*b[2]+((diff(diff(V(xi), xi), xi))*b[6]+V(xi)*b[1])*(V(xi)^((1/2)/m))^(2*m)+V(xi)*((b[3]+b[4])*(V(xi)^((1/2)/m))^(6*m)+l((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+4*m((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+b[5]*(V(xi)^((1/2)/m))^(8*m)-l*lambda))/V(xi) = 0))*denom(rhs(((V(xi)^((1/2)/m))^(4*m)*V(xi)*b[2]+((diff(diff(V(xi), xi), xi))*b[6]+V(xi)*b[1])*(V(xi)^((1/2)/m))^(2*m)+V(xi)*((b[3]+b[4])*(V(xi)^((1/2)/m))^(6*m)+l((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+4*m((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+b[5]*(V(xi)^((1/2)/m))^(8*m)-l*lambda))/V(xi) = 0)) = numer(rhs(((V(xi)^((1/2)/m))^(4*m)*V(xi)*b[2]+((diff(diff(V(xi), xi), xi))*b[6]+V(xi)*b[1])*(V(xi)^((1/2)/m))^(2*m)+V(xi)*((b[3]+b[4])*(V(xi)^((1/2)/m))^(6*m)+l((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+4*m((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+b[5]*(V(xi)^((1/2)/m))^(8*m)-l*lambda))/V(xi) = 0))*denom(lhs(((V(xi)^((1/2)/m))^(4*m)*V(xi)*b[2]+((diff(diff(V(xi), xi), xi))*b[6]+V(xi)*b[1])*(V(xi)^((1/2)/m))^(2*m)+V(xi)*((b[3]+b[4])*(V(xi)^((1/2)/m))^(6*m)+l((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+4*m((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+b[5]*(V(xi)^((1/2)/m))^(8*m)-l*lambda))/V(xi) = 0))

(V(xi)^((1/2)/m))^(4*m)*V(xi)*b[2]+(V(xi)^((1/2)/m))^(2*m)*V(xi)*b[1]+(V(xi)^((1/2)/m))^(6*m)*V(xi)*b[3]+(V(xi)^((1/2)/m))^(6*m)*V(xi)*b[4]+V(xi)*l((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+4*V(xi)*m((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+(V(xi)^((1/2)/m))^(8*m)*V(xi)*b[5]-V(xi)*l*lambda+(V(xi)^((1/2)/m))^(2*m)*(diff(diff(V(xi), xi), xi))*b[6] = 0

 (5)
> 

simplify((V(xi)^((1/2)/m))^(4*m)*V(xi)*b[2]+(V(xi)^((1/2)/m))^(2*m)*V(xi)*b[1]+(V(xi)^((1/2)/m))^(6*m)*V(xi)*b[3]+(V(xi)^((1/2)/m))^(6*m)*V(xi)*b[4]+V(xi)*l((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+4*V(xi)*m((1/4)*(V(xi)^((1/2)/m))^(4*m)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/(m^2*V(xi)^2))*a+(V(xi)^((1/2)/m))^(8*m)*V(xi)*b[5]-V(xi)*l*lambda+(V(xi)^((1/2)/m))^(2*m)*(diff(diff(V(xi), xi), xi))*b[6] = 0, 'symbolic')

V(xi)*(l((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+4*m((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+(diff(diff(V(xi), xi), xi))*b[6]+V(xi)^4*b[5]+(b[3]+b[4])*V(xi)^3+V(xi)^2*b[2]+V(xi)*b[1]-l*lambda) = 0

 (6)
> 

simplify(V(xi)*(l((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+4*m((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+(diff(diff(V(xi), xi), xi))*b[6]+V(xi)^4*b[5]+(b[3]+b[4])*V(xi)^3+V(xi)^2*b[2]+V(xi)*b[1]-l*lambda) = 0)

V(xi)*(l((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+4*m((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+(diff(diff(V(xi), xi), xi))*b[6]+V(xi)^4*b[5]+(b[3]+b[4])*V(xi)^3+V(xi)^2*b[2]+V(xi)*b[1]-l*lambda) = 0

 (7)
> 

normal(V(xi)*(l((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+4*m((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+(diff(diff(V(xi), xi), xi))*b[6]+V(xi)^4*b[5]+(b[3]+b[4])*V(xi)^3+V(xi)^2*b[2]+V(xi)*b[1]-l*lambda) = 0, ':-expanded')

V(xi)^3*b[2]+V(xi)^2*b[1]+V(xi)^4*b[3]+V(xi)^4*b[4]+V(xi)*l((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(diff(V(xi), xi))^2*l+2*(diff(V(xi), xi))^2*m)/m^2)*a+4*V(xi)*m((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(diff(V(xi), xi))^2*l+2*(diff(V(xi), xi))^2*m)/m^2)*a+V(xi)^5*b[5]-V(xi)*l*lambda+V(xi)*(diff(diff(V(xi), xi), xi))*b[6] = 0

 (8)
> 

normal(V(xi)^3*b[2]+V(xi)^2*b[1]+V(xi)^4*b[3]+V(xi)^4*b[4]+V(xi)*l((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(diff(V(xi), xi))^2*l+2*(diff(V(xi), xi))^2*m)/m^2)*a+4*V(xi)*m((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(diff(V(xi), xi))^2*l+2*(diff(V(xi), xi))^2*m)/m^2)*a+V(xi)^5*b[5]-V(xi)*l*lambda+V(xi)*(diff(diff(V(xi), xi), xi))*b[6] = 0)

V(xi)^3*b[2]+V(xi)^2*b[1]+V(xi)^4*b[3]+V(xi)^4*b[4]+V(xi)*l((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(diff(V(xi), xi))^2*l+2*(diff(V(xi), xi))^2*m)/m^2)*a+4*V(xi)*m((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(diff(V(xi), xi))^2*l+2*(diff(V(xi), xi))^2*m)/m^2)*a+V(xi)^5*b[5]-V(xi)*l*lambda+V(xi)*(diff(diff(V(xi), xi), xi))*b[6] = 0

 (9)
> 

eval(4*%*m^2)

(4*V(xi)^3*b[2]+4*V(xi)^2*b[1]+4*V(xi)^4*b[3]+4*V(xi)^4*b[4]+4*V(xi)*l((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(diff(V(xi), xi))^2*l+2*(diff(V(xi), xi))^2*m)/m^2)*a+16*V(xi)*m((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(diff(V(xi), xi))^2*l+2*(diff(V(xi), xi))^2*m)/m^2)*a+4*V(xi)^5*b[5]-4*V(xi)*l*lambda+4*V(xi)*(diff(diff(V(xi), xi), xi))*b[6])*m^2 = 0

 (10)
> 

simplify((4*V(xi)^3*b[2]+4*V(xi)^2*b[1]+4*V(xi)^4*b[3]+4*V(xi)^4*b[4]+4*V(xi)*l((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(diff(V(xi), xi))^2*l+2*(diff(V(xi), xi))^2*m)/m^2)*a+16*V(xi)*m((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(diff(V(xi), xi))^2*l+2*(diff(V(xi), xi))^2*m)/m^2)*a+4*V(xi)^5*b[5]-4*V(xi)*l*lambda+4*V(xi)*(diff(diff(V(xi), xi), xi))*b[6])*m^2 = 0)

4*V(xi)*m^2*(l((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+4*m((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+(diff(diff(V(xi), xi), xi))*b[6]+V(xi)^4*b[5]+(b[3]+b[4])*V(xi)^3+V(xi)^2*b[2]+V(xi)*b[1]-l*lambda) = 0

 (11)
> 

simplify(4*V(xi)*m^2*(l((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+4*m((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+(diff(diff(V(xi), xi), xi))*b[6]+V(xi)^4*b[5]+(b[3]+b[4])*V(xi)^3+V(xi)^2*b[2]+V(xi)*b[1]-l*lambda) = 0, 'symbolic')

4*V(xi)*m^2*(l((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+4*m((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+(diff(diff(V(xi), xi), xi))*b[6]+V(xi)^4*b[5]+(b[3]+b[4])*V(xi)^3+V(xi)^2*b[2]+V(xi)*b[1]-l*lambda) = 0

 (12)
> 

normal(4*V(xi)*m^2*(l((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+4*m((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(l+2*m)*(diff(V(xi), xi))^2)/m^2)*a+(diff(diff(V(xi), xi), xi))*b[6]+V(xi)^4*b[5]+(b[3]+b[4])*V(xi)^3+V(xi)^2*b[2]+V(xi)*b[1]-l*lambda) = 0, ':-expanded')

4*V(xi)^5*m^2*b[5]+4*V(xi)^4*m^2*b[3]+4*V(xi)^4*m^2*b[4]+4*V(xi)^3*m^2*b[2]+4*V(xi)*m^2*(diff(diff(V(xi), xi), xi))*b[6]+4*V(xi)^2*m^2*b[1]+4*V(xi)*m^2*l((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(diff(V(xi), xi))^2*l+2*(diff(V(xi), xi))^2*m)/m^2)*a+16*V(xi)*m^2*m((1/4)*(2*(diff(diff(V(xi), xi), xi))*V(xi)*m+(diff(V(xi), xi))^2*l+2*(diff(V(xi), xi))^2*m)/m^2)*a-4*V(xi)*m^2*l*lambda = 0

 (13)
 

NULL

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