Narada Purana — Purva Bhaga, Shloka 50
Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
व्यासध्नं प्रभजेद्विप्र ज्या काशं जायते स्फुटा । ज्यांघ्रीषुध्नोवृत्तवर्गोबग्धिघ्नव्यासाढ्यमौर्विहृत् ॥ ५० ॥
vyāsadhnaṃ prabhajedvipra jyā kāśaṃ jāyate sphuṭā | jyāṃghrīṣudhnovṛttavargobagdhighnavyāsāḍhyamaurvihṛt || 50 ||
婆羅門よ、直径を割りて求めよ。そこから弦（jyā）は明らかに得られる。弦と関係する量—円、量の平方、直径—を用い、弦の法（jyā）により所要の結果を定める。
Sanatkumara (teaching Narada technical auxiliary knowledge in the Moksha-Dharma context)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
FAQs
It shows that even practical sciences (like measurement and computation) can be taught as supportive knowledge—disciplined clarity of intellect serving dharma and ultimately aiding the seeker’s steadiness on the path to liberation.
Indirectly: it emphasizes precision, method, and disciplined learning—qualities that, when turned toward worship and scriptural practice, strengthen bhakti through correct understanding and right application of teachings.
A technical computational method using jyā (chord), diameter, and square-measure ideas—aligned with traditional Indian mathematical/astronomical procedures that support calendrics, ritual timing, and related Vedic applications.