The Surya Siddhanta is an ancient Indian astronomical text that contains information about mathematics, astronomy, and astrology. It is believed to have been written around the 4th or 5th century CE.

Aryabhata, an Indian mathematician and astronomer, is credited with developing the concept of zero in the 5th century CE. He also developed a system of positional notation, which allowed for the representation of large numbers.

Aryabhata is also credited with developing the trigonometric functions of sine and cosine. He used these functions to calculate the lengths of chords and arcs of circles.

Brahmagupta, an Indian mathematician and astronomer, developed the concept of the sine table in the 7th century CE. He used this table to calculate the values of sine for different angles.

Bhaskara II, an Indian mathematician and astronomer, developed the concept of the cosine table in the 12th century CE. He used this table to calculate the values of cosine for different angles.

Bhaskara II also developed the concept of the tangent table. He used this table to calculate the values of tangent for different angles.

Bhaskara II developed the concept of the cotangent table as well. He used this table to calculate the values of cotangent for different angles.

Bhaskara II also developed the concept of the secant table. He used this table to calculate the values of secant for different angles.

Bhaskara II developed the concept of the cosecant table as well. He used this table to calculate the values of cosecant for different angles.

Bhaskara II also developed the concept of the versine table. He used this table to calculate the values of versine for different angles.

Bhaskara II developed the concept of the haversine table as well. He used this table to calculate the values of haversine for different angles.

Bhaskara II also developed the concept of the exsecant table. He used this table to calculate the values of exsecant for different angles.

Bhaskara II developed the concept of the excosecant table as well. He used this table to calculate the values of excosecant for different angles.

Brahmagupta developed the concept of the chord table. He used this table to calculate the lengths of chords for different angles.

Brahmagupta also developed the concept of the arc table. He used this table to calculate the lengths of arcs for different angles.