Re: [ODE] ODE BUG
kalikali at tlen.pl
kalikali at tlen.pl
Fri Oct 21 10:52:05 MST 2005
To Andrew
Yes, of course s(t) = s0 + t*v0 + 0.5*a*t*t is correct
I forgot t^2. My mistake
But i've made mistake only in my post text.
The problem i've raise is actual.
---- Wiadomość Oryginalna ----
Od: Andrew Aye <AndrewA at terminalreality.com>
Do: ode at q12.org
Data: Thu, 20 Oct 2005 16:13:00 -0500
Temat: RE: [ODE] ODE BUG
>
> I believe the following is true <shrug> IMHO
>
> acceleration = a
> velocity is the time integral of acceleration or v(t) = v0 + t*a
> position is the time integral of velocity or s(t) = s0 + t*v0 + 0.5*a*t*t
>
> So to be precise, neither of the equations as listed are correct
>
> However, even though its slightly incorrect the way ODE does it is:
>
> Calculate:
> v1 = v0 + at ( or in their case v1 = v0 + (inverse Mass) * (Force) *
> t )
> s1 = s0 + t(v1)
>
> As you can see this will slightly overestimate the integration process.
>
>
>
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