Re: math modelling

From: Vittorio (v.demartino2_at_virgilio.it)
Date: 03/31/04

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    To: debian-user@lists.debian.org
Date: Wed, 31 Mar 2004 14:43:56 +0100

    Try also R (http://cran.r-project.org/ ; apt-get install r-recommended) which
    solves many problems of this kind
    Vittorio

    On Tuesday 30 March 2004 21:29, David Fokkema wrote:
    > 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
    >
    > --
    > Hi! I'm a .signature virus. Copy me into
    > your ~/.signature to help me spread! 

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