Tuesday, November 10th, 2009
How to Make a Circle Graph
Description
A detailed tutorial on how to make circle graphs. Step by step tutorial including several examples of how to make circle graphs for reference.
Overview
Circle graphs, also referred to as pi charts to avoid confusing them with graphs on the coordinate plane, are graphs in the shape of a circle that deal with a specific set of data. Circle graphs deal with percentages of a whole. The title of the circle graph is your whole, and the circle represents the whole. Then the circle is cut off into different percentages, and each is labelled with the proper category and exactly what percent it is meant to represent. Very often each section of the circle will be a different color to avoid confusion.
Tags: algebra, categories, category, chart, circle, color, data, different, graph, label, percent, percentage. title, pi, represent, section, set
Posted in Algebra | No Comments »
Friday, September 25th, 2009
Four-Color Theorem Explained
Description
A detailed tutorial on the four-color theorem. Step by step tutorial including several examples of the four-color theorem for reference.
Overview
The four-color theorem is a concept in math that states that given any seperation of a plane into seperate regions, the regions can be colored in using at the most four colors so that no two adjacent regions have the same color. These planes are called maps, and in fact a real map is an example of one. In order for two regions to be adjacent, they must share a side. If they share a point they are not considered adjacent.
Tags: adjacent, color, four, four color map theorem, four-color, four-color theorem, Geometry, map, Math, planes, point, regions, seperate, side, theorem
Posted in Geometry | No Comments »
