:orphan: LABREAD ======= LABREAD is a utility program for getting information about integrals stored on the one-electron integral file AOPROPER. Usage is straightforward, for instance:: dirac 55>labread.x AOPROPER MOLECULE labels found on file :AOPROPER 1 ******** 25Jul12 SY 1TFFT OVERLAP 3 ******** 25Jul12 SY 1TFFT MOLFIELD 5 ******** 25Jul12 SY 1FFFT BETAMAT 7 ******** 25Jul12 AN 1FTTF XDIPVEL 9 ******** 25Jul12 AN 1FTTF YDIPVEL 11 ******** 25Jul12 AN 1FTTF ZDIPVEL 13 ******** 25Jul12 SY 1TFFT PVCF1 01 15 ******** 25Jul12 SY 1TFFT PVCF1 02 17 ******** 25Jul12 SY 1TFFT FC F1 01 19 ******** 25Jul12 SY 1TFFT FC F1 02 21 ******** 25Jul12 SY 1FTTF PVCF1 01 23 ******** 25Jul12 SY 1FTTF PVCF1 02 25 ******** 25Jul12 SY 1TFFT ED F1 01 27 ******** 25Jul12 SY 1TFFT ED F1 02 29 ******** 25Jul12 SY 1TFFT EOFLABEL 29 records read before EOF on file. STOP The notation *SY* and *AN* indicate whether the integral matrix is symmetric or not. In general only certain combinations of large and small component blocks have been calculated. An even operator has *TFFT*, meaning that only *LL* and *SS* blocks have been generated, whereas an odd operator has *FTTF*, meaning that only *LS* and *SL* blocks were generated. For information about integral labels, see the :ref:`one_electron_operators` section.