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Software to demonstrate addition of SHO's


I am looking for a simulation software to demonstrate addition of waves with different amplitudes, frequencies , velocities. So I should be able to define , say , 2 to 3 component
waves and the output will give me the addition of these waves. I think showing actual
simulation helps students learn about phase and group velocities.......

if anybody knows such software , preferably for windows , please let me know.......

Most I know of are additions of harmonics (aka. fourier synthesis): Decent ones with different functions are on PhET and on the more obscure http://www.phy.ntnu.edu.tw/ntnujava/index.php#2" simulation sites.

One that allows you to change frequency and direction of to co-linear waves is on NTNUJava, but doesn't include the possibility of dispersion.

Edited to add: http://www.falstad.com/dispersion/" [Broken]
Last edited by a moderator:
thanks for the reply. what about mathematica ? can it do these things ? i am currently
downloading it.

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