Jyā, koṭi-jyā and utkrama-jyā are three trigonometric functions introduced by Indian mathematicians and astronomers. The earliest known Indian treatise...

=\arctan(m)}   (this is the inverse function of tangent; see inverse trigonometric functions). For example, consider a line running through points (2,8)...

knowledge of trigonometry, including the sine table and relationships between different trigonometric functions. He also developed spherical trigonometry, along...

series, calculus, trigonometry, geometry, and algebra. He was the first to use infinite series approximations for a range of trigonometric functions, which...

revolution around the Sun to 9 decimal places. Trigonometry: Developments of spherical trigonometry The trigonometric formulas:   sin ⁡ ( a + b ) = sin ⁡ ( a...

week with names for the days of week. Golapada (50 verses): Geometric/trigonometric aspects of the celestial sphere, features of the ecliptic, celestial...

is known for some of the earliest known discussions of fractions and trigonometric functions. The Surya Siddhanta is one of several astronomy-related Hindu...

mathematical concepts. Their most important results—series expansion for trigonometric functions—were described in Sanskrit verse in a book by Neelakanta called...

numeral system Symbol for zero (0) Infinite series expansions for the trigonometric functions Centres Kerala school of astronomy and mathematics Jantar...

Roman numerals to Arabic numerals, and the integration of advanced trigonometric functions. In Word, the capability of inserting video and audio online...