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Reverse iteration root-finding
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The sinc function is defined by sinc(x) = sin(x)/x. This function comes up constantly in signal processing. Here’s a plot. We would like to find the location of the function’s peaks. Let’s focus first on the first positive peak, the one that’s somewhere between 5 and 10. Once we can find that one, the rest […] The post Reverse iteration root-finding first appeared on John D. Cook.
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