ú΢ÊSafeTOEvaluate an expression Example: `evaluate def "x + y ^ 2" [("x", 1), ("y", 2)]          'mathexpr-0.3.0.0-7suTIjqXk2qAG5uMG9ZY0wNumeric.MathExprSettings operators functionsdefaultOperatorsdefaultFunctionsevaluate$fDefaultSettings toPostfixtokenizereplaceVariables alphanumericisAlphanumericisSymbol triLookuppad