Functions | |
FLA_Error | FLA_Ttmm_u_unb_var2 (FLA_Obj A) |
References FLA_Absolute_square(), FLA_Cont_with_3x3_to_2x2(), FLA_Dotcs_external(), FLA_Dots_external(), FLA_Gemv_external(), FLA_Gemvc_external(), FLA_Obj_is_real(), FLA_Obj_length(), FLA_ONE, FLA_Part_2x2(), FLA_Repart_2x2_to_3x3(), and FLA_Scal_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 /* a10t = alpha11 * a01; */ 00059 FLA_Scal_external( alpha11, a01 ); 00060 00061 /* a01 = a01 + A02 * a12t'; */ 00062 FLA_Gemv_external( FLA_NO_TRANSPOSE, FLA_ONE, A02, a12t, FLA_ONE, a01 ); 00063 00064 /* alpha11 = alpha11 * alpha11; */ 00065 FLA_Absolute_square( alpha11 ); 00066 00067 /* alpha11 = alpha11 + a12t * a12t'; */ 00068 FLA_Dots_external( FLA_ONE, a12t, a12t, FLA_ONE, alpha11 ); 00069 } 00070 else 00071 { 00072 /* a10t = alpha11 * a01; */ 00073 FLA_Scal_external( alpha11, a01 ); 00074 00075 /* a01 = a01 + A02 * a12t'; */ 00076 FLA_Gemvc_external( FLA_NO_TRANSPOSE, FLA_CONJUGATE, FLA_ONE, A02, a12t, FLA_ONE, a01 ); 00077 00078 /* alpha11 = alpha11 * alpha11'; */ 00079 FLA_Absolute_square( alpha11 ); 00080 00081 /* alpha11 = alpha11 + a12t * a12t'; */ 00082 FLA_Dotcs_external( FLA_CONJUGATE, FLA_ONE, a12t, a12t, FLA_ONE, alpha11 ); 00083 } 00084 00085 /*------------------------------------------------------------*/ 00086 00087 FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, a01, /**/ A02, 00088 a10t, alpha11, /**/ a12t, 00089 /* ************** */ /* ************************ */ 00090 &ABL, /**/ &ABR, A20, a21, /**/ A22, 00091 FLA_TL ); 00092 00093 } 00094 00095 return FLA_SUCCESS; 00096 }