Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
शंकुमानांगुलाभ्यस्ते भुजत्रिज्ये यथांक्रमम् । कोटीज्ययाविभज्याप्ते छायाकर्माबहिर्द्दले ॥ १४० ॥
śaṃkumānāṃgulābhyaste bhujatrijye yathāṃkramam | koṭījyayāvibhajyāpte chāyākarmābahirddale || 140 ||
Lorsque la bhujā (base) et la trijyā (rayon/hypoténuse) sont multipliées successivement par la mesure du śaṅku (gnomon) exprimée en aṅgulas, puis que ces produits sont divisés par la koṭi-jyā, la valeur obtenue doit être appliquée à l’étape externe du calcul de l’ombre (chāyā-karma).
Narada (within a technical exposition on computation/measurement)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It highlights that dharma and mokṣa-oriented life in the Purāṇic tradition is supported by precise Vedic sciences—accurate measurement (pramāṇa) and time-knowledge (Jyotiṣa) safeguard correct observance of rites and disciplines.
Indirectly: by teaching reliable methods for determining time and related calculations, it supports properly timed worship, vrata observance, and ritual discipline—practical foundations that steady devotional practice.
Vedāṅga Jyotiṣa and gaṇita-style computation: a rule using śaṅku (gnomon), aṅgula units, and triangle components (bhujā, koṭi-jyā, trijyā) for chāyā-karma (shadow calculation).