**tom denton**

## Visualizing Data

*By tom denton On February 12, 2013 · Leave a Comment*

In December, the Philedelphia police department in the United States released a csv database of major crimes (murder, rape, burglary, etc) since 2006. Since then, community software developers have been mapping the data. The community involvement is hoped to spur the future release of large city data sets.

Within the Kenyan context, we [...]

## SMA109: Week Three

*By tom denton On October 19, 2012 · 1 Comment*

This week, we continued discussing infinite sets of numbers, bijections, and modular arithmetic (alongside Pythagorean triples).

Here are some challenge problems to consider!

Are there natural numbers such that ? If so, find them, if not, explain why. Are there such that and exactly two of a,b,c are divisible by n? If so, find an [...]

## SMA109: Week One

*By tom denton On September 25, 2012 · 6 Comments*

For the first week, we explore basics of functions and permutations, picking up basic notation that we will use throughout the course.

On Tuesday, we obtained a definition of a function after first learning an informal definition of 'set' and examining a number of examples of functions. Along the way, we picked up some basic [...]