math modelling

From: David Fokkema (dfokkema_at_ileos.nl)
Date: 03/30/04

  • Next message: Curt Howland: "irremovable package?" 
    Date: Tue, 30 Mar 2004 22:29:22 +0200
To: debian-user@lists.debian.org

    Hi group,

    I'm looking for free software which is suited for modelling. For
    example, I'd like to simulate a flying cannonball with something like
    this:

    Model:
    vy(t) = vy(t) + ay * dt
    y(t) = y(t) + vy(t) * dt
    x(t) = x(t) + vx(t) * dt
    t = t + dt

    Initial conditions:
    ay = 9.8
    vy = 120
    vx = 60
    t = 0
    dt = 0.1

    It is primarily intented to teach students how a mathematical model
    works. There are several proprietary programs available. In the
    Netherlands, probably all high schools use the program Coach for driving
    experiments, doing modelling, etc. in physics, chemistry and biology. It
    is a dutch program, so probably very few of you will have heard of it.

    I think it may be possible to do this in basically every algebra system,
    like octave, yacas, etc. but I'd like to do this as easily as possible.
    Any suggestions? Thanks!

    David 

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