FLA_Her2k_un_unb_var9.c File Reference

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Functions
FLA_Error	FLA_Her2k_un_unb_var9 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C)

---

Function Documentation

FLA_Error FLA_Her2k_un_unb_var9	(	FLA_Obj	alpha,
		FLA_Obj	A,
		FLA_Obj	B,
		FLA_Obj	beta,
		FLA_Obj	C
	)

References FLA_Cont_with_1x3_to_1x2(), FLA_Her2_external(), FLA_Obj_width(), FLA_Part_1x2(), FLA_Repart_1x2_to_1x3(), and FLA_Scalr_external().

Referenced by FLA_Her2k_un().

{
  FLA_Obj AL,    AR,       A0,  a1t,  A2;

  FLA_Obj BL,    BR,       B0,  b1t,  B2;

  FLA_Scalr_external( FLA_UPPER_TRIANGULAR, beta, C );

  FLA_Part_1x2( A,    &AL,  &AR,      0, FLA_LEFT );

  FLA_Part_1x2( B,    &BL,  &BR,      0, FLA_LEFT );

  while ( FLA_Obj_width( AL ) < FLA_Obj_width( A ) ){


    FLA_Repart_1x2_to_1x3( AL,  /**/ AR,        &A0, /**/ &a1t, &A2,
                           1, FLA_RIGHT );

    FLA_Repart_1x2_to_1x3( BL,  /**/ BR,        &B0, /**/ &b1t, &B2,
                           1, FLA_RIGHT );

    /*------------------------------------------------------------*/

    /* C = C + a1t * b1t' + b1t * a1t' */
    FLA_Her2_external( FLA_UPPER_TRIANGULAR, alpha, a1t, b1t, C );

    /*------------------------------------------------------------*/

    FLA_Cont_with_1x3_to_1x2( &AL,  /**/ &AR,        A0, a1t, /**/ A2,
                              FLA_LEFT );

    FLA_Cont_with_1x3_to_1x2( &BL,  /**/ &BR,        B0, b1t, /**/ B2,
                              FLA_LEFT );

  }

  return FLA_SUCCESS;
}