[sc-issues] [Issue 75620] Order of Operations Error
To comment on the following update, log in, then open the issue: http://www.openoffice.org/issues/show_bug.cgi?id=75620 User andreschnabel changed the following: What|Old value |New value Status|UNCONFIRMED |RESOLVED Resolution| |INVALID --- Additional comments from [EMAIL PROTECTED] Thu Mar 22 09:05:27 + 2007 --- closing invalid, as the given list of operators is missing unary operators, like the minus sign. These have to be the first in the sequence of calculation. So: so -x^2 is equivalent to (-x)^2 as the - is a unary operator. but y-x^2 is equivalent to y-(x^2) as the - is a subtraction operator. - Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[sc-issues] [Issue 75620] Order of Operations Error
To comment on the following update, log in, then open the issue: http://www.openoffice.org/issues/show_bug.cgi?id=75620 User andreschnabel changed the following: What|Old value |New value CC|''|'andreschnabel' Status|RESOLVED |CLOSED Keywords| |oooqa --- Additional comments from [EMAIL PROTECTED] Thu Mar 22 09:05:52 + 2007 --- closed - Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[sc-issues] [Issue 75620] Order of Operations Error
To comment on the following update, log in, then open the issue: http://www.openoffice.org/issues/show_bug.cgi?id=75620 --- Additional comments from [EMAIL PROTECTED] Thu Mar 22 09:34:35 + 2007 --- You may have a look at Issue 24271. A single minus sign in front of a number is nothing else than a negation of this number as it can't be an operator. The BODMAS rule just applys to operators not notations. Frank - Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[sc-issues] [Issue 75620] Order of Operations Error
To comment on the following update, log in, then open the issue: http://www.openoffice.org/issues/show_bug.cgi?id=75620 --- Additional comments from [EMAIL PROTECTED] Thu Mar 22 11:08:39 + 2007 --- I respectfully disagree with the responses. Negation is the multiplication by -1. In programming terms, it is a unary operator. Precedence rules in many of the high level languages (Fortran, C, C++, C#, Perl) are common (see ECMA-334:14.2.1) and would provide calculations more consistent with the everyday user while being less likely to result in subtle misunderstandings and incorrect calculations. Using a precedence order different than most common programming languages and different from users expectations and training (high school Algebra) is unnecessary in my opinion and detracts from Calc. Again, I understand the need to be Excel compatible. In the 'best' world, this *feature* could be turned off and a more standard precedence order could be used for calculations. - Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[sc-issues] [Issue 75620] Order of Operations Error
To comment on the following update, log in, then open the issue: http://www.openoffice.org/issues/show_bug.cgi?id=75620 User andreschnabel changed the following: What|Old value |New value Status|CLOSED|UNCONFIRMED Resolution|INVALID | --- Additional comments from [EMAIL PROTECTED] Thu Mar 22 11:28:43 + 2007 --- reopen, as this should rather be closed as duplicate to issue 24271 - Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[sc-issues] [Issue 75620] Order of Operations Error
To comment on the following update, log in, then open the issue: http://www.openoffice.org/issues/show_bug.cgi?id=75620 User andreschnabel changed the following: What|Old value |New value Status|UNCONFIRMED |RESOLVED Resolution| |DUPLICATE --- Additional comments from [EMAIL PROTECTED] Thu Mar 22 11:29:37 + 2007 --- set duplicate *** This issue has been marked as a duplicate of 24271 *** - Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[sc-issues] [Issue 75620] Order of Operations Error
To comment on the following update, log in, then open the issue: http://www.openoffice.org/issues/show_bug.cgi?id=75620 User fst changed the following: What|Old value |New value Status|RESOLVED |CLOSED --- Additional comments from [EMAIL PROTECTED] Thu Mar 22 11:34:29 + 2007 --- closed double - Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[sc-issues] [Issue 75620] Order of Operations Error
To comment on the following update, log in, then open the issue: http://www.openoffice.org/issues/show_bug.cgi?id=75620 --- Additional comments from [EMAIL PROTECTED] Thu Mar 22 11:37:15 + 2007 --- closed again. @mikkl: can you read through Issue 24271 and issue 66735 and see, if some of the proposals (esp. 667359 are usefull? If yes, pleas vote for those issue(s). - Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[sc-issues] [Issue 75620] Order of Operations Error
To comment on the following update, log in, then open the issue: http://www.openoffice.org/issues/show_bug.cgi?id=75620 --- Additional comments from [EMAIL PROTECTED] Thu Mar 22 22:22:50 + 2007 --- @andreschnabel - thank you for pointing out the other two reports. I had searched for cases before posting my issue but was not successful in finding them. I agree that a default insertion of the necessary parenthesis would help clarify the math that is being performed and help to avoid problems debugging spreadsheets while maintaining compatibility with Excel. I will go over and vote for those issues. - Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[sc-issues] [Issue 75620] Order of Operations Error
To comment on the following update, log in, then open the issue: http://www.openoffice.org/issues/show_bug.cgi?id=75620 Issue #|75620 Summary|Order of Operations Error Component|Spreadsheet Version|OOo 2.0.4 Platform|PC URL| OS/Version|Linux Status|UNCONFIRMED Status whiteboard| Keywords| Resolution| Issue type|DEFECT Priority|P3 Subcomponent|programming Assigned to|spreadsheet Reported by|mikkl --- Additional comments from [EMAIL PROTECTED] Thu Mar 22 00:48:42 + 2007 --- The order of mathematical operations is incorrectly implemented in calc. The sequence should be Parenthesis, Exponents, Multiplication Division, Addition Subtraction, all taken left to right. By this order, -x^2 and -(x^2) are equivalent expressions. If x = -1, both terms should evaluate to -1. In Calc, the first term evaluates as 1 and the second term evaluates to -1. The fundamental error in this implementation is evident with the equation -x^2 + 42. By the commutative property of addition and subtraction 42 - x^2 and -x^2 + 42 should give the same results. In calc, they do not. In order to assure the correct answer, the equation must be written as -(x^2) + 42. These additional parenthesis should not be required. I would note that this incorrect handling of the order of operations is consistent with Microsoft Excel--this is /not/ a product benefit (though it may be appropriate to make this inaccurate behavior a switch for compatibility reasons). The implication of this error is that subtle mathematical errors will propagate through complex worksheets unless the user/programmer takes great care to heavily use parenthesis throughout all of their calculations. - Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
