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Wrong Calculation on Round and Compare


I’ve the following setting in an Excel document (see below and in the attached file) using Aspose Cells for Java:

CELLNAME FORMULA or VALUE calculated value (Aspose) calculated value (Excel)
A1 -1.0 -1.0 -1.0
A2 1.0 1.0 1.0
A3 =ROUND(A1/1000,0)=ROUND(A2/1000,0) false true
A4 =ROUND(A1/1000,0)=0 false true
A5 =ROUND(A2/1000,0)=0 true true
A6 =ROUND(A1/1000,0)*(-1.0)=0 true true
A7 =ROUND(A2/1000,0)*(-1.0)=0 false true
A8 =ROUND(A1/1000,0) 0.0 0.0
A9 =ROUND(A2/1000,0) 0.0 0.0

it seems that the problem is a kind of “-0” (negative 0) in Aspose…

have you noticed this problem? (of course there’s a workaround in comparing the parts in a different way… substract and abs) but the formulas are defined by someone else

thanks for your help.


Thanks for your input file. I have tested your xls file with the latest version and I was able to reproduce this bug.

Please see the code below. I have attached the output files too.

This issue has been logged as CELLSJAVA-29101.


String path=“C:\Documents and Settings\Home\Desktop\Round_compare.xls”;

Workbook workbook = new Workbook();



workbook.save(path + “.out.xls”, FileFormatType.EXCEL97TO2003);

workbook.save(path + “.out.pdf”, FileFormatType.PDF);


We have fixed the issue of calculating formula. Please try this new fix.

Please download: Aspose.Cells for Java v2.5.4.13

Thanks, I’ll test it for my original problem.
Is there a general description for the problem, which formulas/values have been influenced by this?

Thanks in advance


Well, it fixes a bug of comparing -0.0 with 0.0. So, it may influence all the formulas that use comparison with operands like 0.0 and -0.0.

Thanks, works for me!
bye Nina

The issues you have found earlier (filed as 29101) have been fixed in this update.

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