.TH "sc::SpatialMOPairIter_eq" 3 "Sun Oct 4 2020" "Version 2.3.1" "MPQC" \" -*- nroff -*-
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.SH NAME
sc::SpatialMOPairIter_eq \- \fBSpatialMOPairIter_eq\fP gives the ordering of same-spin and different-spin orbital pairs if both orbitals of the pairs are from the same space\&.  

.SH SYNOPSIS
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.PP
.PP
\fC#include <pairiter\&.h>\fP
.PP
Inherits \fBsc::SpatialMOPairIter\fP\&.
.SS "Public Member Functions"

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.RI "\fBSpatialMOPairIter_eq\fP (const \fBRef\fP< \fBMOIndexSpace\fP > &space1)"
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.RI "Initialize an iterator for the given MO spaces\&. "
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.RI "void \fBstart\fP (const int ij_offset=0)"
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.RI "Initialize the iterator assuming that iteration will start with pair ij_offset\&. "
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.RI "void \fBnext\fP ()"
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.RI "Move to the next pair\&. "
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.RI "\fBoperator int\fP () const"
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.RI "Returns nonzero if the iterator currently hold valid data\&. "
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.RI "int \fBnij_aa\fP () const"
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.RI "Returns the number of functions in alpha-alpha space\&. "
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.RI "int \fBnij_ab\fP () const"
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.RI "Returns the number of functions in alpha-beta space\&. "
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.RI "int \fBij_aa\fP () const"
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.RI "Returns compound index ij for alpha-alpha case\&. "
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.RI "int \fBij_ab\fP () const"
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.RI "Returns compound index ij for alpha-beta case\&. "
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.RI "int \fBij_ba\fP () const"
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.RI "Returns compound index ij for beta-alpha case\&. "
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.SS "Additional Inherited Members"
.SH "Detailed Description"
.PP 
\fBSpatialMOPairIter_eq\fP gives the ordering of same-spin and different-spin orbital pairs if both orbitals of the pairs are from the same space\&. 

It iterates over all i >= j combinations (total of (ni_+1)*(ni_+2)/2 pairs)\&. 
.SH "Member Function Documentation"
.PP 
.SS "int sc::SpatialMOPairIter_eq::ij_aa () const\fC [inline]\fP, \fC [virtual]\fP"

.PP
Returns compound index ij for alpha-alpha case\&. The i == j combination doesn't make sense, so \fBij_aa()\fP will return -1 for such pairs\&. 
.PP
Implements \fBsc::SpatialMOPairIter\fP\&.

.SH "Author"
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Generated automatically by Doxygen for MPQC from the source code\&.