ROUND Input of NaN (Not a Number) Value returns 0.0 or crashes if the scale is specified. about basic HOT 1 OPEN

	private boolean executeMF_ROUND() {
		if (!evalNumericExpression()) return false;
		//double d1 = EvalNumericExpressionValue;				// look for optional place count arg
		Double d1 = EvalNumericExpressionValue;	//2018-01-15gt			// look for optional place count arg
		if (!d1.isNaN() && !d1.isInfinite()){ //2018-01-15gt
			if (!isNext(',')) {									// no optional parameters, legacy behavior
				d1 = (double)Math.round(d1);
			} else {
				int places = 0;									// default decimal place count
				int roundingMode = BigDecimal.ROUND_HALF_DOWN;	// default rounding mode
				boolean isComma = isNext(',');
				if (!isComma) {
					if (!evalNumericExpression()) return false;	// get decimal place count
					places = EvalNumericExpressionValue.intValue();
					if (places < 0) { return RunTimeError("Decimal place count (" + places + ") must be >= 0"); }
					isComma = isNext(',');
					if (!isComma) d1 = new BigDecimal(d1).setScale(places, roundingMode).doubleValue();//2018-01-15gt
				}
				if (isComma) {									// look for optional rounding mode
					if (!getStringArg()) return false;
					String roundingArg = StringConstant.toLowerCase(Locale.US);
					Integer mode = 0;
					if (roundingArg.indexOf("li") == 0){ //2017-05-05gt
						mode = mRoundingModeTable.get("f");
					}else{
						mode = mRoundingModeTable.get(roundingArg);
					}
					if (mode == null) return RunTimeError("Invalid rounding mode: " + roundingArg);
					roundingMode = mode.intValue();
					if (roundingArg.indexOf("li") == 0){
						d1 = new BigDecimal(d1).setScale(0, roundingMode).setScale(places, roundingMode).doubleValue();
					}else{
						d1 = new BigDecimal(d1).setScale(places, roundingMode).doubleValue();
	
					}
				}
			}
		} //2018-01-15gt
		EvalNumericExpressionValue = d1;
		return true;
	}