OPERATOR NOTATION FOR LINEAR O.D.E.S

LET D REPRESENT THE DIFFERENTIAL

OPERATOR d/dx OR d/dt

(IF AMBIGUOUS USE Dx OR Dt)

SO THAT THE DIFFERENTIAL EQUATION

a d2y/dx2 + b dy/dx + cy = 0

CAN BE WRITTEN IN OPERATOR NOTATION

(a D2 +b D + c)y = 0

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