Trigonometry is a kind of mathematics that the triangles and the spatial relationships between sides and angles of a triangle between the sides level studies. Trigonometry is used to define the trigonometric functions. Trigonometric functions describe the relationships between angles and sides are also applied to cyclical phenomena such as waves.

Trigonometry is very similar to the geometry itself, but is somewhat more complicated. It uses functions such as sine, cosine and tangent of analyze the corners. These and other functions of trigonometry are in a variety of professional fields, including uses, but not limited to: acoustics, architecture, astronomy, biology, chemistry, civil engineering, computer graphics, metrology, medical imaging, music theory and several other areas.

Trigonometry is taught in middle school and high school. It can be taught as a separate course but is taught as a preliminary course of the calculation. Trigonometry students develop their knowledge of pure and applied mathematics. Trigonometry at the college is required for different career majors, the students a better understanding of angles and spatial relationships.

Trigonometry was first developed in the second century BC by Greek mathematician Hippachus. Hipparchus developed what is known as the first trigonometric table. He used trigonometry and other mathematical functions to the sun and the moon to develop theories. He also used trigonometry to study the motion and orbit of the moon and the sun. Although trigonometry was developed by Hippachus, the study of triangles all the way back to be returned to the Egyptian and Babylonian mathematics mathematics.

The Egyptians and Babylonians used trigonometry to sentences about the relationships of pages to develop the triangle. The Babylonian astronomers trigonometry early to measure the angular distance on the celestial sphere. They used these detailed records of the rising and setting of the stars, earth movements and eclipses.

During the Hellenistic period, the Greeks took the early Egyptian and Babylonian and trigonometry developed, the rope that will develop the use of bows. A chord of a circle is a geometric line whose ends on the circumference of the circle. The cable connects any two points on the curve, but is not limited to an ellipse. The rope that goes through the point center of the circle and the diameter of the circle.

Trigonometry, which is currently being used today by the European mathematicians, Sir Isaac Newton and James Stirling 17th Century developed. Stirling and Newton created the formulas that are currently used to solve trigonometric functions.