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-- Input generated from LinearOrdinaryDifferentialOperatorTwoXmpPage
)clear all


-- Input generated from ugxLinearOrdinaryDifferentialOperatorTwoConstPage
)clear all

Q  := Fraction Integer
PQ := UnivariatePolynomial('x, Q)
x: PQ := 'x
Dx: LODO2(Q, PQ) := D()
a := Dx  + 1
b := a + 1/2*Dx**2 - 1/2
p := 4*x**2 + 2/3
a p
(a * b) p = a b p
c := (1/9)*b*(a + b)**2
(a**2 - 3/4*b + c) (p + 1)

-- Input generated from ugxLinearOrdinaryDifferentialOperatorTwoMatrixPage
)clear all

PZ   := UnivariatePolynomial(x,Integer)
x:PZ := 'x
Mat  := SquareMatrix(3,PZ)
Vect := DPMM(3, PZ, Mat, PZ)
Modo := LODO2(Mat, Vect)
m:Mat := matrix [[x**2,1,0],[1,x**4,0],[0,0,4*x**2]]
p:Vect := directProduct [3*x**2+1,2*x,7*x**3+2*x]
q: Vect := m * p
Dx : Modo := D()
a : Modo := Dx  + m
b : Modo := m*Dx  + 1
c := a*b
a p
b p
(a + b + c) (p + q)