code: public T extractVector( boolean extractRow , int element )
      {
          if( extractRow ) {
              return extractMatrix(element,element+1,0,SimpleMatrix.END);
          } else {
              return extractMatrix(0,SimpleMatrix.END,element,element+1);
          }
      }
docs: <p>
  Extracts a row or column from this matrix. The returned vector will either be a row
  or column vector depending on the input type.
  </p>
  
  @param extractRow If true a row will be extracted.
  @param element The row or column the vector is contained in.
  @return Extracted vector.