Mathematician:Edmund Gunter

Mathematician
British clergyman, mathematician, geometer and astronomer.

Best remembered for his contributions toward land surveying: Gunter's chain, the Gunter's quadrant and the Gunter's scale.

Credited with the first ever publication, in $1620$, of logarithms of trigonometric functions.

Invented the terms cosine and cotangent.

Nationality
English, of Welsh descent

History

 * Born: 1581 in Hertfordshire, England
 * Died: 10 December 1626 in London, England

Inventions

 * Gunter's Chain
 * Gunter's Quadrant
 * Gunter's Scale
 * Gunter's Rule

Publications

 * 1603: New Projection of the Sphere
 * 1620: Canon Triangulorum sive Tabulae Sinuum et Tangentium Artificialum ("Canon of Triangles: or Tables of Artificial Sines and Tangents")
 * 1623: Description and Use of the Sector, the Crosse-staffe and other Instruments
 * 1624: The Description and Use of His Majesties Dials in Whitehall Garden