Trigonometry History and Development

Study Notes

Emergence of Trigonometry

The field of trigonometry emerged in the Hellenistic period, around the 3rd century BCE.
It developed from the need to understand and measure angles and distances in astronomy and geography.

Focus of Trigonometry

Trigonometry is concerned with the relationships between the angles and sides of triangles.
It particularly emphasizes right-angled triangles and their properties.

Applications of Trigonometry

Historically, trigonometry has been applied in astronomy for calculating celestial distances and understanding planetary motions.
It has been essential in navigation, aiding sailors in determining their positions at sea.
Architecture and engineering have utilized trigonometric principles for designing structures and understanding spatial relationships.

Greek Contributions to Trigonometry

The Greeks primarily focused on defining trigonometric concepts through geometry.
They developed methods to calculate angles and distances within the context of circles and triangles, leading to foundational formulas and theorems.

Sumerian Astronomers and Trigonometry

Sumerian astronomers studied the heavens, developing early forms of angle measurement.
They recorded observations of celestial bodies and their movements, laying groundwork for later trigonometric applications in astronomy.

Description

Explore the historical origins and early developments of trigonometry, from its emergence in the Hellenistic world to the creation of trigonometric tables in India. Learn about the relationships between angles and ratios of lengths that form the foundation of this branch of mathematics.