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List: koffice-devel
Subject: Re: Question about XIRR in financial.cpp
From: Stefan Nikolaus <stefan.nikolaus () kdemail ! net>
Date: 2008-07-19 10:12:40
Message-ID: 200807191212.40896.stefan.nikolaus () kdemail ! net
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On Friday 18 July 2008 16:47:16 Stefan Nikolaus wrote:
> On Friday 18 July 2008 16:14:34 Alvaro Soliverez wrote:
> > Hello Stefan,
> > thanks a lot for the prompt answer.
> > After some more debugging, I found a bug in our method that triggers an
> > infinite loop. The XIRR method in koffice has a way to prevent this. And
> > given that it is according to the OpenFormula spec, I think it would be
> > better to use that one.
> >
> > I will adapt the function work in KMyMoney. It is not possible to just
> > link to it, because there are major difference in data structures.
> >
> > Since KMyMoney is GPL v2 or later, and the file here (
> > http://api.kde.org/koffice-api/koffice-apidocs/kspread/html/financial_8cp
> >p- source.html#l02034) is GPLv2 only, I will create a separate class with
> > only the methods I need and copy the corresponding copyright notice.
> > Is this ok with you? I see that you are one of the copyright holders in
> > the file.
>
> The XIRR function was written by Sascha Pfau (CC'ed).
>
> @Sascha: Is it okay/possible to relicense this code as GPL version 2 or
> later?
Sascha gave his okay to relicense the code, so you can just copy it over to
your project.
--
Stefan Nikolaus
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p, li { white-space: pre-wrap; }
</style></head><body style=" font-family:'Bitstream Vera Sans'; font-size:9pt; font-weight:400; \
font-style:normal;"> <p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; \
margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">On Friday 18 July \
2008 16:47:16 Stefan Nikolaus wrote:</p> <p style=" margin-top:0px; margin-bottom:0px; \
margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> \
On Friday 18 July 2008 16:14:34 Alvaro Soliverez wrote:</p> <p style=" margin-top:0px; \
margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; \
-qt-user-state:0;">> > Hello Stefan,</p> <p style=" margin-top:0px; margin-bottom:0px; \
margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> \
> thanks a lot for the prompt answer.</p> <p style=" margin-top:0px; margin-bottom:0px; \
margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> \
> After some more debugging, I found a bug in our method that triggers an</p> <p style=" \
margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; \
text-indent:0px; -qt-user-state:0;">> > infinite loop. The XIRR method in koffice has a \
way to prevent this. And</p> <p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; \
margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> > given that \
it is according to the OpenFormula spec, I think it would be</p> <p style=" margin-top:0px; \
margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; \
-qt-user-state:0;">> > better to use that one.</p> <p style=" margin-top:0px; \
margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; \
-qt-user-state:0;">> ></p> <p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; \
margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> > I will \
adapt the function work in KMyMoney. It is not possible to just</p> <p style=" margin-top:0px; \
margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; \
-qt-user-state:0;">> > link to it, because there are major difference in data \
structures.</p> <p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; \
margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> ></p> <p \
style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; \
-qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> > Since KMyMoney is GPL v2 or \
later, and the file here (</p> <p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; \
margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> > \
http://api.kde.org/koffice-api/koffice-apidocs/kspread/html/financial_8cp</p> <p style=" \
margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; \
text-indent:0px; -qt-user-state:0;">> >p- source.html#l02034) is GPLv2 only, I will \
create a separate class with</p> <p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; \
margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> > only the \
methods I need and copy the corresponding copyright notice.</p> <p style=" margin-top:0px; \
margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; \
-qt-user-state:0;">> > Is this ok with you? I see that you are one of the copyright \
holders in</p> <p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; \
-qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> > the file.</p> <p style=" \
margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; \
text-indent:0px; -qt-user-state:0;">></p> <p style=" margin-top:0px; margin-bottom:0px; \
margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> \
The XIRR function was written by Sascha Pfau (CC'ed).</p> <p style=" margin-top:0px; \
margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; \
-qt-user-state:0;">></p> <p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; \
margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">> @Sascha: Is it \
okay/possible to relicense this code as GPL version 2 or</p> <p style=" margin-top:0px; \
margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; \
-qt-user-state:0;">> later?</p> <p style="-qt-paragraph-type:empty; margin-top:0px; \
margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; \
-qt-user-state:0;"></p> <p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; \
margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;">Sascha gave his okay \
to relicense the code, so you can just copy it over to your project.</p> <p \
style="-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; \
margin-right:0px; -qt-block-indent:0; text-indent:0px; -qt-user-state:0;"></p> <p style=" \
margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; \
text-indent:0px; -qt-user-state:0;">-- </p> <p style=" margin-top:0px; margin-bottom:0px; \
margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; \
-qt-user-state:0;">Stefan Nikolaus</p></body></html>
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