now the equation is

d2u/dt2-(2*d2u/x2)+d2u/dxdt=0

initial condition: u(x,0)=1-(xsign(x)), abslute x<1,0 otherwise. Assume sign(x)=-1 for x<0, 1for x>0

Ut(x,0)=cos(pix), bslute x<1, 0 otherwise , he didnt give any B.Cs

so I would like to know the analytical and numerical sols, and plots for the wave at t=2,4

for Numerical: delta x=0.1, delta t=0.025, range 0..4

U(x,t)= 2/3f(x+t)+1/3f(x-2t)+(1/3pi)(sin(pi(x+t))+(1/3pi)(sin(pi(x-2t)),

f(x)=1-x,abslutex<1, zero otherwise

initial condition: u(x,0)=1-x, abslute x<1 Ut(x,0)=cos(pix), bslute x<1

B.C U(-4,t)=U(4,t)=0, delta x=0.1, delta t=0.025, range 0..4

I've been instructed to create an animation showing the changing plots of a single square waveform using 5,10,20,40,80,160,320, and 640 terms in my Fourier series. This is my code right now:

with (plots):L := [seq(2^i, i = 0 .. 6)];

[1, 2, 4, 8, 16, 32, 64]

animate( plot, [2/((2*n-1)*Pi))*sin((2*n-1)*Pi*x], n=L);Error, `)` unexpected

It doesn't work. Can anyone explain what I'm doing wrong, or how to solve my question?

Hi,

I'm trying to get a hold of using DLL with Maple at the moment.

Just to give you some background informations.

My Headerfile:

[code]

#include using namespade std;namespace WAVEFUNC{ class { public: ...

Dear Maple users

I know how to plot surfaces in 3D. However now I have a special task: I want to plot a piece of a solid region in 3D, more precisely a transverse or logitudinal wave. I wonder if there is an easy way to do this in Maple? Any hint will be appreciated!

Regards,

Erik

How can I plot standing waves with extra parameters. That is how can I plot something like 2A*sin(kx)*cos(wt) and vary the parameters to see what would happen if different types of waves traveling in different directions collided.

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