Lalla
Encyclopedia
Lalla was an India
n mathematician
, astronomer
, and astrologer
who belonged to a family of astronomers. His most famous work was titled Śiṣya-dhī-vṛddhida-tantra, or "Treatise which expands the intellect of students." He is also known for having published the earliest known description of a perpetuum mobile
in Śiṣyadhīvṛddhidatantra.
In his work, Lalla drew on his predecessors Āryabhaṭa
, Brahmagupta
, and Bhāskara I
. In turn, he influenced later generations of astronomers, including Śrīpati
, Vaṭeśvara, and Bhāskara II (who wrote a commentary on the Śiṣyadhīvṛddhidatantra).
He followed the Ārya-pakṣa or the school of Āryabhaṭa
(continued by Bhāskara I
), but divided the mahāyuga the traditional way, following the Brāhma-pakṣa school of Brahmagupta
. Although he followed Āryabhaṭa, he did not believe in the rotation of the Earth.
His father's name was Trivikrama, and he lived in central India, possibly in the Lāṭa region in modern south Gujarat.
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
n mathematician
Indian mathematics
Indian mathematics emerged in the Indian subcontinent from 1200 BCE until the end of the 18th century. In the classical period of Indian mathematics , important contributions were made by scholars like Aryabhata, Brahmagupta, and Bhaskara II. The decimal number system in use today was first...
, astronomer
Astronomer
An astronomer is a scientist who studies celestial bodies such as planets, stars and galaxies.Historically, astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using...
, and astrologer
Astrologer
An astrologer practices one or more forms of astrology. Typically an astrologer draws a horoscope for the time of an event, such as a person's birth, and interprets celestial points and their placements at the time of the event to better understand someone, determine the auspiciousness of an...
who belonged to a family of astronomers. His most famous work was titled Śiṣya-dhī-vṛddhida-tantra, or "Treatise which expands the intellect of students." He is also known for having published the earliest known description of a perpetuum mobile
Perpetual motion
Perpetual motion describes hypothetical machines that operate or produce useful work indefinitely and, more generally, hypothetical machines that produce more work or energy than they consume, whether they might operate indefinitely or not....
in Śiṣyadhīvṛddhidatantra.
In his work, Lalla drew on his predecessors Āryabhaṭa
Aryabhata
Aryabhata was the first in the line of great mathematician-astronomers from the classical age of Indian mathematics and Indian astronomy...
, Brahmagupta
Brahmagupta
Brahmagupta was an Indian mathematician and astronomer who wrote many important works on mathematics and astronomy. His best known work is the Brāhmasphuṭasiddhānta , written in 628 in Bhinmal...
, and Bhāskara I
Bhaskara I
Bhāskara was a 7th century Indian mathematician, who was apparently the first to write numbers in the Hindu-Arabic decimal system with a circle for the zero, and who gave a unique and remarkable rational approximation of the sine function in his commentary on Aryabhata's work...
. In turn, he influenced later generations of astronomers, including Śrīpati
Sripati
Śrīpati was an Indian astronomer and mathematician, the author of Dhikotidakarana , a work of twenty verses on solar and lunar eclipses; Dhruvamanasa , a work of 105 verses on calculating planetary longitudes, eclipses and planetary transits; Siddhantasekhara a major work on astronomy in 19...
, Vaṭeśvara, and Bhāskara II (who wrote a commentary on the Śiṣyadhīvṛddhidatantra).
He followed the Ārya-pakṣa or the school of Āryabhaṭa
Aryabhata
Aryabhata was the first in the line of great mathematician-astronomers from the classical age of Indian mathematics and Indian astronomy...
(continued by Bhāskara I
Bhaskara I
Bhāskara was a 7th century Indian mathematician, who was apparently the first to write numbers in the Hindu-Arabic decimal system with a circle for the zero, and who gave a unique and remarkable rational approximation of the sine function in his commentary on Aryabhata's work...
), but divided the mahāyuga the traditional way, following the Brāhma-pakṣa school of Brahmagupta
Brahmagupta
Brahmagupta was an Indian mathematician and astronomer who wrote many important works on mathematics and astronomy. His best known work is the Brāhmasphuṭasiddhānta , written in 628 in Bhinmal...
. Although he followed Āryabhaṭa, he did not believe in the rotation of the Earth.
His father's name was Trivikrama, and he lived in central India, possibly in the Lāṭa region in modern south Gujarat.
Works
- Jyotiṣaratnakośa. Most popular astronomy book in India for 300 years.
- Śiṣyadhīvṛddhidatantra
- A commentary on BrahmaguptaBrahmaguptaBrahmagupta was an Indian mathematician and astronomer who wrote many important works on mathematics and astronomy. His best known work is the Brāhmasphuṭasiddhānta , written in 628 in Bhinmal...
's Khandakhadyaka, now lost - orks at cartoon chynals