.TH "sc::StreSimpleCo" 3 "Sun Oct 4 2020" "Version 2.3.1" "MPQC" \" -*- nroff -*- .ad l .nh .SH NAME sc::StreSimpleCo \- The \fBStreSimpleCo\fP class describes an stretch internal coordinate of a molecule\&. .SH SYNOPSIS .br .PP .PP \fC#include \fP .PP Inherits \fBsc::SimpleCo\fP\&. .SS "Public Member Functions" .in +1c .ti -1c .RI "\fBStreSimpleCo\fP (const \fBStreSimpleCo\fP &)" .br .ti -1c .RI "\fBStreSimpleCo\fP (const char *, int, int)" .br .RI "This constructor takes a string containing a label, and two integers which are the indices of the atoms we're measuring the distance between\&. " .ti -1c .RI "\fBStreSimpleCo\fP (const \fBRef\fP< \fBKeyVal\fP > &)" .br .RI "The \fBKeyVal\fP constructor\&. " .ti -1c .RI "const char * \fBctype\fP () const" .br .RI "Always returns the string 'STRE'\&. " .ti -1c .RI "double \fBbohr\fP () const" .br .RI "Returns the distance between the two atoms in atomic units\&. " .ti -1c .RI "double \fBangstrom\fP () const" .br .RI "Returns the distance between the two atoms in angstrom units\&. " .ti -1c .RI "double \fBpreferred_value\fP () const" .br .RI "Returns the distance between the two atoms in angstrom units\&. " .in -1c .SS "Additional Inherited Members" .SH "Detailed Description" .PP The \fBStreSimpleCo\fP class describes an stretch internal coordinate of a molecule\&. The input is described in the documentation of its parent class \fBSimpleCo\fP\&. .PP Designating the two atoms as $a$ and $b$ and their cartesian positions as $\bar{r}_a$ and $\bar{r}_b$, the value of the coordinate, $r$, is \[ r = \| \bar{r}_a - \bar{r}_b \| \] .SH "Constructor & Destructor Documentation" .PP .SS "sc::StreSimpleCo::StreSimpleCo (const char *, int, int)" .PP This constructor takes a string containing a label, and two integers which are the indices of the atoms we're measuring the distance between\&. Atom numbering begins at atom 1, not atom 0\&. .SS "sc::StreSimpleCo::StreSimpleCo (const \fBRef\fP< \fBKeyVal\fP > &)" .PP The \fBKeyVal\fP constructor\&. This calls the \fBSimpleCo\fP keyval constructor with an integer argument of 2\&. .SH "Author" .PP Generated automatically by Doxygen for MPQC from the source code\&.