- When did Hipparchus die?
- What is Hipparchus best known for?
- What jobs use trigonometry?
- Who invented math?
- Who was credited for having discovered the precession of Earth?
- How long did Hipparchus live?
- Why was trigonometry invented?
- Why Sine is called sine?
- What country is first in math?
- Who invented time?
- How trigonometry is used in real life?
- Who first discovered trigonometry?
- Who is father of maths?
- What exactly is sine?
- Why do we use sine?
- How is sin calculated?
- What did Claudius Ptolemy discover?
- Which country invented trigonometry?

## When did Hipparchus die?

120 BCHipparchus/Date of death.

## What is Hipparchus best known for?

Hipparchus, also spelled Hipparchos, (born, Nicaea, Bithynia [now Iznik, Turkey]—died after 127 bc, Rhodes?), Greek astronomer and mathematician who made fundamental contributions to the advancement of astronomy as a mathematical science and to the foundations of trigonometry.

## What jobs use trigonometry?

Other jobs that may use trigonometry are navigation, land surveying, mathematics, science, engineering, architecture, cartography, computer graphics, machining, meteorology, music theory, oceanography, phonetics, seismology, and statistics.

## Who invented math?

Beginning in the 6th century BC with the Pythagoreans, the Ancient Greeks began a systematic study of mathematics as a subject in its own right with Greek mathematics. Around 300 BC, Euclid introduced the axiomatic method still used in mathematics today, consisting of definition, axiom, theorem, and proof.

## Who was credited for having discovered the precession of Earth?

astronomer HipparchusHistorically, the discovery of the precession of the equinoxes is usually attributed in the West to the 2nd-century-BC astronomer Hipparchus.

## How long did Hipparchus live?

Founded in the 4th Century BC, Nicaea lies on the eastern shore of Lake Iznik. Reasonably enough Hipparchus is often referred to as Hipparchus of Nicaea or Hipparchus of Bithynia and he is listed among the famous men of Bithynia by Strabo, the Greek geographer and historian who lived from about 64 BC to about 24 AD.

## Why was trigonometry invented?

The ancient Greeks transformed trigonometry into an ordered science. … Most of the early advancements in trigonometry were in spherical trigonometry mostly because of its application to astronomy. The three main figures that we know of in the development of Greek trigonometry are Hipparchus, Menelaus, and Ptolomy.

## Why Sine is called sine?

The word sine comes from the Latin sinus, bosom, because early translators mistook the Arabic word for chord and thought it was the Arabic word for bosom. The “co-” prefix in cosine and cotangent simply stands for co-angle, the complementary angle. The cosine of an angle is the sine of its complementary angle.

## What country is first in math?

Primary maths rankings saw Singapore again clinch the top spot, with Hong Kong, South Korea, Taiwan and Japan following closely behind. Number six was Northern Ireland, the highest-ranking European country, followed by Russia, Norway, Ireland and England.

## Who invented time?

The measurement of time began with the invention of sundials in ancient Egypt some time prior to 1500 B.C. However, the time the Egyptians measured was not the same as the time today’s clocks measure. For the Egyptians, and indeed for a further three millennia, the basic unit of time was the period of daylight.

## How trigonometry is used in real life?

Trigonometry can be used to roof a house, to make the roof inclined ( in the case of single individual bungalows) and the height of the roof in buildings etc. It is used naval and aviation industries. It is used in cartography (creation of maps). Also trigonometry has its applications in satellite systems.

## Who first discovered trigonometry?

Hipparchus of NicaeaThe first trigonometric table was apparently compiled by Hipparchus of Nicaea (180 – 125 BCE), who is now consequently known as “the father of trigonometry.” Hipparchus was the first to tabulate the corresponding values of arc and chord for a series of angles.

## Who is father of maths?

ArchimedesArchimedes is for sure considered to be the most prominent father of mathematics.

## What exactly is sine?

In mathematics, the sine is a trigonometric function of an angle. The sine of an acute angle is defined in the context of a right triangle: for the specified angle, it is the ratio of the length of the side that is opposite that angle, to the length of the longest side of the triangle (the hypotenuse).

## Why do we use sine?

The sine function is defined as the ratio of the side of the triangle opposite the angle divided by the hypotenuse. This ratio can be used to solve problems involving distance or height, or if you need to know an angle measure. Example: … To find the length of the side opposite the angle, d, we use the sine function.

## How is sin calculated?

In a right triangle, the sine of an angle is the length of the opposite side divided by the length of the hypotenuse. Try this Drag any vertex of the triangle and see how the sine of A and C are calculated. The sine function, along with cosine and tangent, is one of the three most common trigonometric functions.

## What did Claudius Ptolemy discover?

Ptolemy was an astronomer and mathematician. He believed that the Earth was the center of the Universe. The word for earth in Greek is geo, so we call this idea a “geocentric” theory.

## Which country invented trigonometry?

The Babylonians could measure angles, and are believed to have invented the division of the circle into 360º. However, it was the Greeks who are seen as the original pioneers of trigonometry. A painting of the famous greek geometrist, and “father of measurement”, Euclid.