Question: Need to generate the series for T[i] as it was generated for U[i]

Download Sum_Sum.mw
 

Restart:

Digits := 10:

Ha := 2:

R := 2:

a := 0.1e-2:

Rt := 1:

Br := 1.5:

Xi := 0:

U[0] := 0:

U[1] := alpha:

U[2] := -6+(1/16)*Rt*Xi:

U[3] := (1/6)*beta:

T[0] := -(1/2)*Rt:

T[1] := phi:

``

delta := proc (k) options operator, arrow; `if`(k = 0, 1, 0) end proc;

proc (k) options operator, arrow; `if`(k = 0, 1, 0) end proc

(1)

for k from 0 to 10 do U[k+4] := ((Ha^2+R)*U[k+2]+Xi*T[k+2])/((4*(k+3))*(k+4)); sum((1+(4/3)*R+4*a*R*T[i])*(k-i+1)*(k-i+2)*T[k-i+2], i = 0 .. k) := -4*a*R*(sum((i+1)*T[i+1]*(k-i+1)*T[k-i+1], i = 0 .. k))-Br*(sum((i+1)*U[i+1]*(k-i+1)*U[k-i+1], i = 0 .. k))+(1/4)*Ha^2*Br*(sum(U[i]*U[k-i], i = 0 .. k)) end do:

u := sum(U[j]*y^j, j = 0 .. 9)

alpha*y-6*y^2+(1/6)*beta*y^3-(3/4)*y^4+(1/80)*beta*y^5-(3/80)*y^6+(1/2240)*beta*y^7-(9/8960)*y^8+(1/107520)*beta*y^9

(2)

``


 

Download Sum_Sum.mw

 

Please Wait...