Phase reversal at fixed boundary

*To*: mathgroup at smc.vnet.net*Subject*: [mg106999] Phase reversal at fixed boundary*From*: Jon Joseph <josco.jon at gmail.com>*Date*: Sun, 31 Jan 2010 05:56:53 -0500 (EST)

All: I would like to simulate a wave pulse on a string. The end of the string is fixed to a wall so when the pulse hits the wall I have perfect reflection with a phase reversal. The following code is an attempt and if I could figure out how to put the two animations together I would just about have it. Any suggestions? = Animate[Show[Graphics[Rectangle[{9.5,-1},{10,1}]],Plot[PDF[NormalDistribution[t,.5],x],{x, -4,9.5}, PlotRange->{{-4,10}, {-1,1}}]], {t, 0, 10}] = Animate[Show[Graphics[Rectangle[{9.5,-1},{10,1}]],Plot[-PDF[NormalDistribution[10-t,.5],x],{x, 9.5,-4}, PlotRange->{{-4,10}, {-1,1}}]], {t, 0, 10}] Thanks in advance. Jon=