java.lang.AssertionError: =SERIESSUM(B105,0,2,B106:B109) failed, at row 104 in xsheet: formula-math
Expected: "0.7071"
     but: was "Error evaluating cell 'formula-math'!B104"
	at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)
	at org.junit.Assert.assertThat(Assert.java:865)
	at org.junit.rules.ErrorCollector$1.call(ErrorCollector.java:65)
	at org.junit.rules.ErrorCollector.checkSucceeds(ErrorCollector.java:78)
	at org.junit.rules.ErrorCollector.checkThat(ErrorCollector.java:63)
	at zss.test.FormulaTest.testFormulaByRangesInSheet(FormulaTest.java:158)
	at zss.test.FormulaTest.testMath(FormulaTest.java:51)
	...

嚴重的: >>org.zkoss.poi.ss.formula.eval.NotImplementedException: Error evaluating cell 'first-error'!F20
>>org.zkoss.poi.ss.formula.eval.NotImplementedException: SERIESSUM
>>	at org.zkoss.poi.ss.formula.atp.AnalysisToolPak$NotImplemented.evaluate(AnalysisToolPak.java:40)
>>	at org.zkoss.poi.ss.formula.UserDefinedFunction.evaluate(UserDefinedFunction.java:65)
>>	at org.zkoss.poi.ss.formula.OperationEvaluatorFactory.evaluate(OperationEvaluatorFactory.java:129)
>>	at org.zkoss.poi.ss.formula.WorkbookEvaluator.evaluateFormula(WorkbookEvaluator.java:539)
>>	at org.zkoss.poi.ss.formula.WorkbookEvaluator.evaluateAny(WorkbookEvaluator.java:316)
>>	at org.zkoss.poi.ss.formula.WorkbookEvaluator.evaluate(WorkbookEvaluator.java:255)
>>	at org.zkoss.poi.xssf.usermodel.XSSFFormulaEvaluator.evaluateFormulaCellValue(XSSFFormulaEvaluator.java:266)
>>	at org.zkoss.poi.xssf.usermodel.XSSFFormulaEvaluator.evaluate(XSSFFormulaEvaluator.java:119)
>>	at org.zkoss.zss.model.sys.impl.BookHelper.evaluate(BookHelper.java:476)
>>	at org.zkoss.zss.model.sys.impl.BookHelper.reevaluate(BookHelper.java:303)
>>	at org.zkoss.zss.model.sys.impl.BookHelper.reevaluateAndNotify(BookHelper.java:462)
>>	at org.zkoss.zss.model.sys.impl.XRangeImpl.reevaluateAndNotify(XRangeImpl.java:421)
>>	at org.zkoss.zss.model.sys.impl.XRangeImpl.setEditText(XRangeImpl.java:385)
>>	at org.zkoss.zss.api.impl.RangeImpl.setCellEditText(RangeImpl.java:604)
>>	at org.zkoss.zss.ui.Spreadsheet.processStopEditing0(Spreadsheet.java:4381)
>>	at org.zkoss.zss.ui.Spreadsheet.processStopEditing(Spreadsheet.java:4344)
>>	at org.zkoss.zss.ui.Spreadsheet.access$42(Spreadsheet.java:4342)
>>	at org.zkoss.zss.ui.Spreadsheet$2.onEvent(Spreadsheet.java:318)