He defined the spherical triangle
An important contribution by Menelaus of Alexandria was his works on geodesics.
hipparchus
well, nothing is for sure but it is said that Hipparchus, a Greek geographer. its kind of odd though. but they say that they have evidence of his systematic use of trigonometry. Also Menelaus and Ptolomy helped in the development of trigonometry.
There is no Contribution of Thales in the field of trignometry.........
Centuries ago, Islam created the mathematics of 'Trigonometry'.
An important contribution by Menelaus of Alexandria was his works on geodesics.
nothing
hipparchus
well, nothing is for sure but it is said that Hipparchus, a Greek geographer. its kind of odd though. but they say that they have evidence of his systematic use of trigonometry. Also Menelaus and Ptolomy helped in the development of trigonometry.
He introduced coordinated geometry
There is no Contribution of Thales in the field of trignometry.........
Ptolemy created the earliest tables of trigonometry functions that were found. His mathematical methods have been used to solve problems in astronomy.
spherical and plane trigonometry? :p
Centuries ago, Islam created the mathematics of 'Trigonometry'.
Thales, Democritus, Pythagoras, Aristotle, Archimedes, Euclid, Erastosthenes, Hipparchus,
Bartholomaeus Pitiscus is best known for his book called Trigonometria which was first published in Heidelburg in 1595. It consists of work on plane and spherical trigonometry. The book had the first recorded mention of the word "trigonometry".
According to Math experts, Hipparchus, Menelaus, and Ptolemy are responsible for developing Greek trigonometry for the purposes of studying differences in shapes of the planets, sun and moon. By observing the shapes of each, they were able to determine the ratios and areas of each one.