Procedure

   void vequ_c ( ConstSpiceDouble   vin[3],
                 SpiceDouble        vout[3] ) 

Abstract

 
    Make one double precision 3-dimensional vector equal to 
    another. 
 

Required_Reading

 
    None. 
 

Keywords

 
    ASSIGNMENT,  VECTOR 
 

Brief_I/O

 
   VARIABLE  I/O  DESCRIPTION 
   --------  ---  -------------------------------------------------- 
   vin       I   3-dimensional double precision vector. 
   vout      O   3-dimensional double precision vector set equal 
                 to vin. 
 

Detailed_Input

 
   vin      This may be ANY 3-dimensional double precision vector. 
 

Detailed_Output

 
   vout    This 3-dimensional double precision vector is set equal 
           to vin. 
 

Parameters

 
   None. 
 

Exceptions

 
   Error free. 
 

Files

 
    None. 
 

Particulars

 
   vequ_c simply sets each component of vout in turn equal to vin.  No 
   error checking is performed because none is needed. 
 

Examples

 
   Let state be a state vector. The angular momentum vector is 
   determined by the cross product of the position vector and the 
   velocity vector. 
 
    vequ_c ( state[0], R );
    vequ_c ( state[3], V ); 
 
    vcrss_c ( R, V, H );
 
 

Restrictions

 
    None. 
 

Literature_References

 
    None. 
 

Author_and_Institution

 
    W.M. Owen       (JPL) 
 

Version

 
   -CSPICE Version 1.1.0, 22-OCT-1998 (NJB)

      Made input vector const.  Removed #include of SpiceZfc.h.

   -CSPICE Version 1.0.0, 08-FEB-1998   (EDW)

Index_Entries

 
   assign a 3-dimensional vector to another 
 

Link to routine vequ_c source file vequ_c.c