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! -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
