Functions | |
FLA_Error | FLA_Ttmm_l_unb_var1 (FLA_Obj A) |
References FLA_Absolute_square(), FLA_Cont_with_3x3_to_2x2(), FLA_Herc_external(), FLA_Obj_is_real(), FLA_Obj_length(), FLA_ONE, FLA_Part_2x2(), FLA_Repart_2x2_to_3x3(), FLA_Scal_external(), and FLA_Syr_external().
00038 { 00039 FLA_Obj ATL, ATR, A00, a01, A02, 00040 ABL, ABR, a10t, alpha11, a12t, 00041 A20, a21, A22; 00042 00043 FLA_Part_2x2( A, &ATL, &ATR, 00044 &ABL, &ABR, 0, 0, FLA_TL ); 00045 00046 while ( FLA_Obj_length( ATL ) < FLA_Obj_length( A ) ){ 00047 00048 FLA_Repart_2x2_to_3x3( ATL, /**/ ATR, &A00, /**/ &a01, &A02, 00049 /* ************* */ /* ************************** */ 00050 &a10t, /**/ &alpha11, &a12t, 00051 ABL, /**/ ABR, &A20, /**/ &a21, &A22, 00052 1, 1, FLA_BR ); 00053 00054 /*------------------------------------------------------------*/ 00055 00056 if ( FLA_Obj_is_real( A ) ) 00057 { 00058 /* A00 = A00 + a10t' * a10t; */ 00059 FLA_Syr_external( FLA_LOWER_TRIANGULAR, FLA_ONE, a10t, A00 ); 00060 00061 /* a10t = alpha11 * a10t; */ 00062 FLA_Scal_external( alpha11, a10t ); 00063 00064 /* alpha11 = alpha11 * alpha11; */ 00065 FLA_Absolute_square( alpha11 ); 00066 } 00067 else 00068 { 00069 /* A00 = A00 + a10t' * a10t; */ 00070 FLA_Herc_external( FLA_LOWER_TRIANGULAR, FLA_CONJUGATE, FLA_ONE, a10t, A00 ); 00071 00072 /* a10t = alpha11 * a10t; */ 00073 FLA_Scal_external( alpha11, a10t ); 00074 00075 /* alpha11 = alpha11' * alpha11; */ 00076 FLA_Absolute_square( alpha11 ); 00077 } 00078 00079 /*------------------------------------------------------------*/ 00080 00081 FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, a01, /**/ A02, 00082 a10t, alpha11, /**/ a12t, 00083 /* ************** */ /* ************************ */ 00084 &ABL, /**/ &ABR, A20, a21, /**/ A22, 00085 FLA_TL ); 00086 00087 } 00088 00089 return FLA_SUCCESS; 00090 }