How to plot a variable

*To*: mathgroup at smc.vnet.net*Subject*: [mg93047] How to plot a variable*From*: Knut SÃrsdal <knutso at online.no>*Date*: Fri, 24 Oct 2008 02:33:28 -0400 (EDT)

When I iterate a variable in a do-loop it actually will not print out. Is it undefined? In Fortran this would never be a problem, but in mathematica it seems that it must be done different: Do[ GA = GA + .5*(G[J] + G[J + 1])*DELT ; Amp = Exp[2.*GA] ; JJ = J + 1; ABB[1] = 1; ABB[JJ] = Amp, {J, 1, N1}] ; pl1 = Plot[ABB, {n, 1, NAX}, PlotLabel -> "Impedans", Filling -> Axis, PlotRange -> All] ABB gives no result..