pythagoras {PBSmapping}R Documentation

Pythagoras' Theorem Diagram PolySet

Description

PolySet of shapes to prove Pythagoras' Theorem: a*a+b*b = c*c.

Usage

data(pythagoras)

Format

4 column data frame: PID = primary polygon ID, POS = position of each vertex within a given polyline, X = X-coordinate, and Y = Y-coordinate. Attributes: projection = 1.

Note

In R, the data must be loaded using the data function. In S, the data are loaded automatically on demand.

Source

An artificial construct to illustrate the proof of Pythagoras' Theorem using trigonometry.

See Also

addPolys, plotPolys, plotMap, PolySet.


[Package PBSmapping version 2.09 Index]