Darel and Linda Hardy
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Darel and Linda 2014
Tokyo
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Mickelson Trail 2014
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South America 2015
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Darel and Linda 2016
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Cabo San Lucas
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Darel and Linda 2019
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Iowa Bike Tour
Darel and Linda 2024
Croatia at Christmas Time
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Rhone River
The Way I Remember It
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Statistics Primer
The First 101 Interesting Numbers
Topics in Mathematics
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Riemann Sum
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Transforming a sphere into a cone
Transforming a sphere into a donut
Optimization problems
Box
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Solids
Average radius
Cylindrical shells
Double integral
Solid of revolution
Three pyramids
Surfaces
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What is an ellipse?
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Average Values
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Weighted Averages
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Glossary of Math and Science
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