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Hayanaratna · by Balabhadra
Chapter 8 · Month Chart and Monthly Results
मासप्रवेशादिविचाराध्यायः
हीनस्त्रैक्यमृणं सूर्य्ये विज्ञेयं धनमन्यथा ॥संस्कृतस्तेन मध्यार्कः स्याद्विस्त्रैक्यसंस्कृतः ॥ १० ॥
... less, the traikya (the sum of three corrections) is to be known as minus for the Sun, and plus otherwise. With that, the mean Sun is corrected. It is the one corrected by the traikya.
Simple meaning: If the Sun's gone ghatikas are less, the traikya is taken away; otherwise it is added. The mean Sun is corrected by it.
अस्य प्रस्फुटता प्राग्वत्सूक्ष्मोर्कस्स्यात्परिस्फुटः ॥
The true Sun is made as before. The birth Sun is made true the same way.
प्रतिवर्षं स एवार्कस्स्फुटस्सगतिको भवेत् ॥
The year Sun is the exact Sun. A month's Sun is the year Sun plus one sign for each month.
स्फुटार्काः स्युर्द्वितीयादिमासेष्वर्कास्तु मासजाः ॥
From the second month, each month's Sun is the exact Sun. For days, add one degree a day.