Varahamihira
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Varahamihira (505 – 587) was an Indian astronomer, mathematician, and astrologer born in Ujjain.
Varahamihira worked as one of the Navaratnas for Chandragupta Vikramaditya. His book Pancasiddhantika (or Pancha-Siddhantika, The Five Astronomical Canons) dated 575 AD gives us information about older Indian texts which are now lost. The work is a treatise on mathematical astronomy and it summarises five earlier astronomical treatises, namely the Surya, Romaka, Paulisa, Vasistha and Paitamaha siddhantas.
Varahamihira is said to have origins from Eastern Iran from a sect known as Maga Brahmins.(Quote: Ramesh Chitor). In more ways than one, the Surya Siddhanta or Treatise on Sun hints that Mihira was from Iran as Iran was the only South Asian country following the SUN worship. Varaha was a name coined by Vikramaditya- king of Ujjain. Mihira(meaning "friend" in Persian)accurately predicted death of Vikramidtya's son during the 18th year. The entire army, intelligence and the king could not save this fatal incident. This will remain as the greatest astrological prediction ever made by Mihira. VarahaMihira's painting can be found in the Indian Parliament alongside Aryabhatta.
Varahamihira made important contributions to mathematics. He was also an astrologer,& is considered among the greatest Acharyas of modern astrology. He is the only author who has written treatises on all the three main branches of Jyotisha /Hindu / Vedic astrology. He has gifted us with the following treatises on astrology :
Some important trigonometric results attributed to Varahamihira
[ sin^2\left( x \right) + cos^2\left( x \right) = 1 ][ sin \left( x \right) = cos\left(\frac - x \right) ]
[ \frac = sin^2x ]
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