Department of Mathematics

Math 300: Mathematical Computing

ICE: Matlab For

Given some positive number \(K\), write Matlab code to plot \[ \sum_{k=0}^K \frac1{2^k} \cos{k\pi x} \] on the interval \([-1,1]\). Note that this will mean first choosing some number \(N\) and making a vector \(x=(x_0,x_1,\dots,x_N)\) where \(x_0=-1, x_1=-1+1/N, x_2=-1+2/N,\dots,x_N=1\), and then evaluating the cosine functions over that vector and adding all those terms together.

Assignment 6 is posted.

The midterm exam will take place on Friday, 12 October. As always, you are permitted any paper notes you find useful, but no electronic devices are allowed. The test is cumulative, but emphasizes the material covered in the last fours weeks. A sample exam is available.

You need to install Matlab on your computer by Wednesday. You do not need Simulink or any particular toolboxes, though you might find the Symbolic toolbox useful at some time in the future (not in this class).

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