Question: Using Matlab program only. Please do not copy and paste from the other posts with the same question because the code doesn't work. I will

Using Matlab program only. Please do not copy and paste from the other posts with the same question because the code doesn't work. I will give thumbs up for the correct answer. Thanks!

Write a computer code using Matlab to do the mode summation for a string with a length of 20, wave velocity of 3. The string was plucked at time 0 by a source at position 8. The source function is =exp[(+)./4].

1a. Show the mode summation at time 1,2, 3 for the first 40 modes.

1b. Show the mode summation at time 1, 2, 3 for the first 80 modes.

You need to have sufficient comments in your scripts to show the wave propagation.

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