Re: Phase Plot of Simple Harmonic Motion using Mathematica ??

*To*: mathgroup at smc.vnet.net*Subject*: [mg126512] Re: Phase Plot of Simple Harmonic Motion using Mathematica ??*From*: "Nasser M. Abbasi" <nma at 12000.org>*Date*: Wed, 16 May 2012 04:22:35 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <jot5nd$aok$1@smc.vnet.net>*Reply-to*: nma at 12000.org

On 5/15/2012 3:56 AM, Rahul Chakraborty wrote: > Hi all, > > Plz check my code below for Phase plot of Simple Harmonic motion. The output should be a circle with x along X-axis and dxdt along y-axis. > > I'm not getting the output. kindly let me know where i'm wrong. > > Clear[k, m]; > k = 1; > m = 3; > solution = > NDSolve[{x''[t] + k/m x[t] == 0, x[0] == 5, x'[0] == 0}, > x, {t, 0, 250}, MaxSteps \[RightArrow] 50000, > WorkingPrecision \[RightArrow] 25] > > > Following are the errors: > This works for me. Just changed your \[RightArrow] with normal ascii -> NDSolve[{x''[t] + (k/m)*x[t] == 0, x[0] == 5, x'[0] == 0}, x, {t, 0, 250}, MaxSteps -> 50000, WorkingPrecision -> 25] --Nasser