//.....................................................................
        /// <summary>
        ///
        /// </summary>
        /// <param name="strBase"></param>
        /// <param name="strDegree"></param>
        /// <returns></returns>
        public static M.Radical MakeMathRadical(string strBase, string strDegree)
        {
            M.Radical radical = new M.Radical( );

            M.RadicalProperties properties = new M.RadicalProperties( );
            properties.Append(OpenDocxMathExprs.MakeControlProperties(true));

            M.Base mathBAS = OpenDocxMathExprs.MakeMathBase(strBase);

            M.Degree mathDEG = OpenDocxMathExprs.MakeMathDegree(strDegree);

            radical.Append(properties);
            radical.Append(mathBAS);
            radical.Append(mathDEG);

            return(radical);
        }