A computer science professor at the State University of New York maintains this online repository, which serves "as a comprehensive collection of algorithm implementations for over seventy of the most fundamental...

Linked essay sketching trigonometry from its beginnings out of the early correspondence between astronomy and mathematics through the 18th century, with 17 references (books/articles). Influential thinkers addressed...

Created by David Smith for the Connected Curriculum Project, the purpose of this module is to study data that may be modeled by sinusoidal functions; in particular, to determine average level, period, frequency,...

Humans have long been interested in looking up into the sky and trying to figure out the nature of the planets, the sun, and the moon. Many ancient civilizations were able to systematically observe the sky and eventually...

This set of videos, created by Salman Kahn of the Kahn Academy, focus on trigonometry. Watch the "Geometry" playlist first if you have trouble understanding the topics covered here, it will certainly be a useful aid. ...