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. App_iso, Aps_iso := eval(Aij_iso): 'assuming'([simplify(taylor(App, theta = 0, 3))], [Vs

. App_ref_iso, [kappa = 1, Vp = 3000, Vs = 1750]): plot([App_VTI, App_VTI_iso, App_ref_iso], theta = 0

. Aps_ref_iso, [kappa = 1, Vp = 3000, Vs = 1750]): plot([Aps_VTI, Aps_VTI_iso, Aps_ref_iso], theta = 0

. Ass_iso, Asp_iso := eval(Aij_iso): 'assuming'([simplify(taylor(Ass, theta = 0, 3))], [Vp::positive,kappa

A. Annexe, AnnexesàAnnexesà la partie I C[V[i,j],V[k,l]]:=temp: od; od; od; od; ###équation###équation de dispersion A:=Matrix

#. and T. Rho, =1: Vp:=3000: Vs:=1500: epsilon:=0.25: delta:=0.10: gam:=0.20: theta_TTI:=30*Pi

. Cvti, Vp^2-Vs^2)^2+2*delta*Vp^2*rho^2*(Vp^2-Vs^2)) -rho*Vs^2: Cvti[2,3]:=Cvti[1,3]: temp:=0: for p from 1 to 3 do for q from 1 to 3 do for r from 1 to 3 do for s from 1 to 3 do temp, pp.3-5

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