ú΢ÊSafeTOEvaluate an expression Example: `evaluate def "x + y ^ 2" [("x", 1), ("y", 2)]          'mathexpr-0.2.0.0-5NMJVSgep022zzy11prTMn Data.MathExprSettings operators functionsdefaultOperatorsdefaultFunctionsevaluate$fDefaultSettings toPostfixtokenizereplaceVariables alphanumericisAlphanumericisSymbol triLookuppad