## Canada Math Camp — Storer Calculus

Posted in Math by pgadey on 2018/07/31

This slideshow requires JavaScript.

The handout for the talk is available here:

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## Homework #5 Question 4

Posted in Math by pgadey on 2018/07/20

Consider a solid ball of radius $R$. Cut a cylindrical hole, through the center of the ball, such that the remaining body has height $h$. Call this the donut $D(R,h)$. Use Cavalieri’s principle to calculate the volume of $D(R,h)$. Calculate the volumes of $D(25,6)$ and $D(50,6)$.

Several students have asked what $D(R,h)$ looks like. Here are some pictures that I found to illustrate the concept. The donut $D(R,h)$ is the region between the red sphere and blue cylinder. The golden balls below show various views of the donut. The donut should fit between the two planes $z=h/2$ and $z=-h/2$, so that it has total height $h$.

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Posted in Math by pgadey on 2018/07/11

I was looking through the Geogebra site and found this lovely applet Orthographic Projection by Malin Christersson.

This is a lovely tool for investigating one of my favourite facts about hexagons:

The area maximizing orthogonal projection of a cube is the regular hexagon.

It turns out that Malin has tonnes of awesome geometry stuff online!

Awesome math art!

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## Public Talks for UTSC

Posted in Math by pgadey on 2018/07/05

## From Colourings to Fixed Points

The notes for the talk are available here.

## Uniform Convergence

The notes for the talk are available here.

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## MAT 134 — Post-Term Test #1 Survey

Posted in 2018 -- MAT 134, Math, Uncategorized by pgadey on 2018/05/31

Thank you for filling out MAT 134 Post-Term Test #1 Survey.

Here is what Parker learned about the class!

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## MAT 134 Survey Results

Posted in Math by pgadey on 2018/05/09
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## Final Poster Presentation Demo

Posted in Math by pgadey on 2018/04/29
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## String Figure Poster Sketch

Posted in Math by pgadey on 2018/04/19

We’re almost ready for our final string figure presentation on May 2nd.

Now we just have to put it all together!

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## Mathematical Knots and String Figures

Posted in Lecture Notes, Math by pgadey on 2018/04/01
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## String Figures for Week 2

Posted in Math by pgadey on 2018/02/16
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