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How to attempt the first stage of this task?

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James Adams
James Adams on 23 Feb 2020
Answered: darova on 24 Feb 2020
Hey guys, I currently have been set a task to achieve, but I don't know where to begin. Below is the objectives i need to achieve.
  • a. Fill a 1024 point array (A) with two cycles of a cosine wave. Do the same for a second array (B). Form the product of the arrays and estimate it’s integral numerically. Plot A and B and the product and add the numerical value of the integral in the plot. You should not use the symbolic toolbox for this task.
  • b. Repeat 3.a, this time using 20 cycles of a cosine wave for array B. comment on the result.
  • c. Repeat 3.a again, this time using 2 cycles of a sine wave for array B. Comment on the results.
All approaches and suggestions are welcome.
Thanks to all,
James

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Accepted Answer

darova
darova on 24 Feb 2020
I give you a start:
This is cosine wave (one cycle)
I usually use linspace to form array with number of points i want
x = linspace(0,4*pi,1024); % 1024 points for 2 cycles
Use cos() to create A and B arrays. Use trapz() to calculate integral numerically
Feel free to ask questions

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