public ValueEval evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg0) {double result;try {double d0 = NumericFunction.singleOperandEvaluate(arg0, srcRowIndex, srcColumnIndex);result = Math.log(d0) / LOG_10_TO_BASE_e;NumericFunction.checkValue(result);} catch (EvaluationException e) {return e.getErrorEval();}return new NumberEval(result);}

public override ValueEval Evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg0){double result;try{double d0 = NumericFunction.SingleOperandEvaluate(arg0, srcRowIndex, srcColumnIndex);result = Math.Log(d0) / NumericFunction.LOG_10_TO_BASE_e;NumericFunction.CheckValue(result);}catch (EvaluationException e){return e.GetErrorEval();}return new NumberEval(result);}
