Re: [vos-d] Thought problem 2: physics 2

2007-02-02 Thread chris
On 2/3/07, chris <[EMAIL PROTECTED]> wrote: > On 2/3/07, Reed Hedges <[EMAIL PROTECTED]> wrote: > > chris wrote: > > >> Of course... why not use a big integer for time? > > > > I would guess that lots of software does, especially since that's what > > most operating systems give you (e.g. time_t).

Re: [vos-d] Thought problem 2: physics 2

2007-02-02 Thread chris
On 2/3/07, Reed Hedges <[EMAIL PROTECTED]> wrote: > chris wrote: > >> Of course... why not use a big integer for time? > > I would guess that lots of software does, especially since that's what > most operating systems give you (e.g. time_t). > > > > > A big integer at a fixed precision has larger

Re: [vos-d] Thought problem 2: physics 2

2007-02-02 Thread Reed Hedges
chris wrote: >> Of course... why not use a big integer for time? I would guess that lots of software does, especially since that's what most operating systems give you (e.g. time_t). > > A big integer at a fixed precision has larger relative error than a > small one Why? Also, ODE doesn't u

Re: [vos-d] Thought problem 2: physics 2

2007-02-01 Thread chris
On 2/2/07, Ken Taylor <[EMAIL PROTECTED]> wrote: chris wrote: > Thought problem 2: physics 2 > > Suppose I am going to do a rigid body simulation. I put one box (box1) > on a plane, at the origin and hold another box (box2) suspended a > meter above the plane nearby. I release box2 at time t=20 a

Re: [vos-d] Thought problem 2: physics 2

2007-02-01 Thread Ken Taylor
I wrote: > chris wrote: > > Question: will the two images of the two experiments show box2 in the > > same rest position relative to box1? > > > > Well first I was going to say "of course not." I mean I was going to say "of course." I'm tired. -Ken _

Re: [vos-d] Thought problem 2: physics 2

2007-02-01 Thread Ken Taylor
chris wrote: > Thought problem 2: physics 2 > > Suppose I am going to do a rigid body simulation. I put one box (box1) > on a plane, at the origin and hold another box (box2) suspended a > meter above the plane nearby. I release box2 at time t=20 and it > bounces, perhaps collides with box1 then ev

[vos-d] Thought problem 2: physics 2

2007-02-01 Thread chris
Thought problem 2: physics 2 Suppose I am going to do a rigid body simulation. I put one box (box1) on a plane, at the origin and hold another box (box2) suspended a meter above the plane nearby. I release box2 at time t=20 and it bounces, perhaps collides with box1 then eventually comes to rest.