Mādhava
Mādhava (1340 -1425 CE) [1]was a Hindu mathematician and astronomer from the town of Sangamagrama (believed to be present-day Kallettumkara, Aloor Panchayath, Irinjalakuda in Thrissur District, Kerala, India). He is the founder of the Kerala school of astronomy and mathematics.
Mādhava made pioneering contributions to the study of infinite series, calculus, trigonometry, geometry, and algebra. Among his many contributions, he discovered infinite series for the trigonometric functions of sine, cosine, arctangent, and many methods for calculating the circumference of a circle. One of Mādhava's series is known from the text Yuktibhāṣā, which contains the derivation and proof of the power series for inverse tangent, discovered by Mādhava.
Madhava's works
K. V. Sarma has identified Madhava has authored the following works:
- Golavada
- Madhyamanayanaprakara
- Mahajyanayanaprakara (Method of Computing Great Sines)
- Lagnaprakarana (लग्नप्रकरण)
- Venvaroha (वेण्वारोह)
- Sphutacandrapti (स्फुटचन्द्राप्ति)
- Aganita-grahacara (अगणित-ग्रहचार)
- Chandravakyani (चन्द्रवाक्यानि) (Table of Moon-mnemonics)