In the old days, plotting was plodding. NuCalc can show you any function's graph in seconds. But can you go backwards -- from the graph to the function? This section from the book takes you through using NuCalc to explore transformations: translations and dilations. Appropriate for students who can graph y = x2 by hand.
Fourier Series are powerful tools for analyzing functions. Usually, they're a college topic, but NuCalc can help give students relevant experiences in adding up sinusoids. These pages appear late in the book, and require an understanding of "sigma" notation, dilation in the x-direction, and the shape of y = sin(x).
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