Hipparchus is considered as the father of trigonometry. he was the one who found the relation between angles of a triangle and its lengths of sides. this relation has developed into an entirely new branch in mathematics as trigonometry. so, one might as well say that he 'made' trigonometry.
Several great mathematicians have made contributions to trigonometry. Pitiscus wrote books on plane and spherical trigonometry, and Hipparchus produced a table of chords.
Grand - 1990 Trigonometry Made Easy 1-11 was released on: USA: 29 March 1990
plane trigonometry spherical trigonometry
The main kinds are plane trigonometry and solid trigonometry. The latter will include trigonometry in hyper-spaces.
Plane trigonometry is trigonometry carried out in (on) a plane. This could be contrasted with spherical trigonometry, which is trigonometry carried out on the surface of a sphere. Certainly there are some other more complex forms of trig.
Trigonometry is applied in construction and building, as trigonometry measures right angled triangles.
Hipparchus is the father of trigonometry.
TRIGONOMETRY
It is a number - in trigonometry or elsewhere.
Trigonometry based on a unit circle and radians and trigonometry based on a right triangle.
trigonometry underlies all calculations about forces dat must be calculated so that buildings are stable and dont collapse . regular flat shapes like squares , pentagon, hexagons can be made out of triangles and so trigonometry plays and role in artitechure and egyptian pyramids
trigonometry is very imr