Outline of trigonometry

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Trigonometry is a branch of mathematics that studies the relationships between the sides and the angles in triangles. Trigonometry defines the trigonometric functions, which describe those relationships and have applicability to cyclical phenomena, such as waves.

Basics[edit]

∠, the angle symbol in Unicode is U+2220
  • Geometry – mathematics concerned with questions of shape, size, the relative position of figures, and the properties of space. Geometry is used extensively in trigonometry.
  • Angle – the angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles formed by two rays lie in a plane, but this plane does not have to be a Euclidean plane.
  • Ratio

Content of trigonometry[edit]

Scholars[edit]

History[edit]

Fields[edit]

Uses of trigonometry

Physics[edit]

Astronomy[edit]

Chemistry[edit]

Geography, geodesy, and land surveying[edit]

Navigation[edit]

Engineering[edit]

Analog devices[edit]

Calculus[edit]

Other areas of mathematics[edit]

Geometric foundations[edit]

Trigonometric functions[edit]

Trigonometric identities[edit]

Trigonometric identity (list)

Solution of triangles[edit]

Solution of triangles

More advanced trigonometric concepts and methods[edit]

Numerical mathematics[edit]

Trigonometric tables[edit]

Trigonometric tables

Spherical trigonometry[edit]

Spherical trigonometry

Mnemonics[edit]

mnemonics in trigonometry

Lists[edit]

See also[edit]

External links[edit]