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How to use recent symbolic programming language as < Mathematica > to buildgood quality programmes that yield valuable data in a short computation time.It is shown how to build good wave functions for any couple of states (bothhaving proper quantum defects) a->|nala> and b-> |nblb> for a transition a->b .The correct normalization of these wave functions |nala > and |nblb > onceobtained, enables the production of atomic useful data : such as linestrengths, or average quantities as < a|r^{a}|a >, < b|r^{a}|b > and < a|r^a|b> with a values a {-2,-1,0,1,2}.

Expectation values of quantum powers < r^a > using quantum defects for  Li O Na Mg using symbolic Mathematics, and new tools such as Topbase to  produce quantum defects of these elements