[Kst] [Bug 89688] New: INTEG() and DERIV() operators for equations

[Barth Netterfield]

At this point, No.
Equations operate value by value, and do not know about either the past or the 
future.
We are talking about a more general approach, however.... but this will 
require some thought and re-design.
On September 17, 2004 06:36 am, Nicolas Brisset wrote:
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> http://bugs.kde.org/show_bug.cgi?id=89688
>            Summary: INTEG() and DERIV() operators for equations
>            Product: kst
>            Version: unspecified
>           Platform: unspecified
>         OS/Version: Solaris
>             Status: UNCONFIRMED
>           Severity: wishlist
>           Priority: NOR
>          Component: general
>         AssignedTo: kst kde org
>         ReportedBy: nicolas.brisset eurocopter com
>
>
> Version:           1.0.0_devel (using KDE 3.3.0, compiled sources)
> Compiler:          gcc version 3.3.2
> OS:                SunOS (sun4u) release 5.8
>
> In the (long and growing) "I need more operators for equations" series,
> would it be possible to add INTEG() and DERIV() operators ? - INTEG could
> have two different syntaxes: INTEG(Vec1), which would just compute the
> cumulative sum of all values, and INTEG(Vec1,Vec2) which would integrate
> i.e. add at each step Vec1(n)*(Vec2(n) - Vec2(n-1)) - DERIV in more or less
> the same fashion.
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