MATLAB No End" Boundary Conditions in Wave on a String

AI Thread Summary
The discussion centers on imposing boundary conditions in a wave simulation when the "no end" option is selected. The user is interested in replicating this setup without altering the wave equation of the string, specifically addressing the challenge of eliminating left-traveling waves. A key point raised is that fixing the boundary on the left side effectively controls the wave traveling to the right. The conversation explores methods to achieve this using a finite difference method for simulating the wave equation, emphasizing the need for a solution that maintains the integrity of the wave equation while preventing unwanted wave propagation in one direction.
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There is no wave traveling to the left. That fixes the wave going right if you fix the boundary to the left.
 
Thank you.
How do I eliminate the waves traveling to the left if I am simulating the wave equation with a simple finite difference method?
 

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