?? pzz2px.m
字號:
function PP=pzz2pX(t1111,t1112,t1122,t1221,t1222,t2222)
% PP=pzz2pX(t1111,t1112,t1122,t1221,t1222,t2222)
% P.Comon, June 12, 1998
% Polynome en 4 variables reellles associe a 1 tenseur complexe
% circulaire de dimension 2
% t1221 est reel par construction, ainsi que t1111 et t2222
% Voir la fonction zz2X.m
Ret1112=real(t1112);Imt1112=imag(t1112);
Ret1122=real(t1122);Imt1122=imag(t1122);
Ret1222=real(t1222);Imt1222=imag(t1222);
PP=[
t1111; % x1^4
4*Ret1112; % x1^3 x2
0; % x1^3 y1
4*Imt1112; % x1^3 y2
4*t1221+2*Ret1122; % x1^2 x2^2
-4*Imt1112; % x1^2 x2 y1
4*Imt1122; % x1^2 x2 y2
2*t1111; % x1^2 y1^2
4*Ret1112; % x1^2 y1 y2
4*t1221-2*Ret1122; % x1^2 y2^2
4*Ret1222; % x1 x2^3
-4*Imt1122; % x1 x2^2 y1
4*Imt1222; % x1 x2^2 y2
4*Ret1112; % x1 x2 y1^2
8*Ret1122; % x1 x2 y1 y2
4*Ret1222; % x1 x2 y2^2
0; % x1 y1^3
4*Imt1112; % x1 y1^2 y2
4*Imt1122; % x1 y1 y2^2
4*Imt1222; % x1 y2^3
t2222; % x2^4
-4*Imt1222; % x2^3 y1
0; % x2^3 y2
4*t1221-2*Ret1122; % x2^2 y1^2
4*Ret1222; % x2^2 y1 y2
2*t2222; % x2^2 y2^2
-4*Imt1112; % x2 y1^3
-4*Imt1122; % x2 y1^2 y2
-4*Imt1222; % x2 y1 y2^2
0; % x2 y2^3
t1111; % y1^4
4*Ret1112; % y1^3 y2
4*t1221+2*Ret1122; % y1^2 y2^2
4*Ret1222; % y1 y2^3
t2222; % y2^4
];
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