I want to know the answer to the following question:
Who wrote the first 12 chapters of the Siddhanta Shiromani?
All the background I'm provided with is that "The first 12 chapters of the Siddhanta Shiromani, written by Bhāskara in the 12th century, cover topics such as: mean longitudes of the planets; true longitudes of the planets; the three problems of diurnal rotation; syzygies; lunar eclipses; solar eclipses; latitudes of the planets; risings and settings; the moon's crescent; conjunctions of the planets with each other; conjunctions of the planets with the fixed stars; and the patas of the sun and moon.". Is that enough to answer the question?
Answer: yes