[bug #48807] gsvd function needs matlab compatible interface

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Follow-up Comment #31, bug #48807 (group octave):=0A=0AIn Matlab 8.4.0.1504=
21 (R2014b):=0A=0A>> M =3D 4; P =3D 2; N =3D 8;=0A>> A =3D [1:8; 1:8; 1:8; =
1:8];=0A>> B =3D [8:-1:1; 8:-1:1];=0A>> [U, V, X, C, S] =3D gsvd (A, B)=0A=
=0AU =3D=0A=0A    1.0000    0.0000   -0.0000   -0.0000=0A   -0.0000   -0.48=
50   -0.3061    0.8192=0A    0.0000   -0.8667    0.2934   -0.4034=0A   -0.0=
000   -0.1168   -0.9057   -0.4076=0A=0A=0AV =3D=0A=0A    0.7071   -0.7071=
=0A    0.7071    0.7071=0A=0A=0AX =3D=0A=0A   11.3137   -0.0000    1.0000  =
 -1.4685   -0.9184    0.0082=0A    9.8995   -0.0000    2.0000   -2.9370   -=
1.8368    0.0163=0A    8.4853    0.0000    3.0000   -4.4054   -2.7553    0.=
0245=0A    7.0711    0.0000    4.0000   -5.8739   -3.6737    0.0326=0A    5=
.6569    0.0000    5.0000   -7.3424   -4.5921    0.0408=0A    4.2426    0.0=
000    6.0000   -8.8109   -5.5105    0.0490=0A    2.8284    0.0000    7.000=
0  -10.2794   -6.4289    0.0571=0A    1.4142    0.0000    8.0000  -11.7479 =
  -7.3474    0.0653=0A=0A=0AC =3D=0A=0A         0         0    1.0000      =
   0         0         0=0A         0         0         0    1.0000        =
 0         0=0A         0         0         0         0    1.0000         0=
=0A         0         0         0         0         0    1.0000=0A=0A=0AS =
=3D=0A=0A     1     0     0     0     0     0=0A     0     1     0     0   =
  0     0=0A=0A>> C'*C + S'*S=0A=0Aans =3D=0A=0A    1.0000         0       =
  0         0         0         0=0A         0    1.0000         0         =
0         0         0=0A         0         0    1.0000         0         0 =
        0=0A         0         0         0    1.0000         0         0=0A=
         0         0         0         0    1.0000         0=0A         0  =
       0         0         0         0    1.0000=0A=0A=0A    ______________=
_________________________________________=0A=0AReply to this item at:=0A=0A=
  <https://savannah.gnu.org/bugs/?48807>=0A=0A_____________________________=
__________________=0AMessage sent via Savannah=0Ahttps://savannah.gnu.org/=
=0A
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