Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
खर्तुदस्नाविपद्वेदाः शीघ्नकर्मणि कीर्तिताः । ओजयुग्मांतरगुणाभुजज्यात्रिज्ययोद्धृताः ॥ १०५ ॥
khartudasnāvipadvedāḥ śīghnakarmaṇi kīrtitāḥ | ojayugmāṃtaraguṇābhujajyātrijyayoddhṛtāḥ || 105 ||
Технические ведийские термины—такие как khartu, dasnā и vipad—излагаются в связи с правилами быстрого вычисления. Они выводятся через взятие промежуточных множителей пары «ojas» (нечётных членов) и посредством мер, называемых bhujajyā и trijyā (синус и три-синус).
Sanatkumara (teaching Narada)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It shows that the Purana preserves not only devotion and dharma, but also precise Vedanga knowledge—especially Jyotisha—supporting correct timing and understanding of Vedic practice.
Indirectly: by grounding ritual timing and sacred observances in accurate Jyotisha computation, it supports disciplined worship—an aid to steady Vishnu-bhakti even when the verse itself is technical.
Vedanga Jyotisha and computational astronomy/ganita—specifically ‘swift computation’ methods and trigonometric measures like bhuja-jyā (sine) and tri-jyā used to derive intermediate factors.