The following are the MathCAD files for Survey of Calculus  written by Professor Mary Hudachek-Buswell and Jeremy Underwood.  

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Linear Regression Tool

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Differences Tool

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Function Limit Tool

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Intersection Tool

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Exponential Regression Tool

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Logistic Regression Tool

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Logarithmic

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Polynomial Regression Tool

Mathcad files from the lecture notes.
bulletLogistic function