EquationSymbolicSolveRequest[List[Equal[λ,a_1]],List[λ]]Solution[{λ,ExpressionSetPoint[a_1,False,ReservedComplex]}]WorksheetAssign[λ,a_1]a_1EquationSymbolicSolveRequest[List[Equal[λ,a_1]],List[a_1]]Solution[{a_1,ReservedComplex}]Assign[λ,a_1]Assign[μ,a_1]