Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
शेषं कंदपदंतस्माद्भुजज्या कोटिरेव च । गताद्भुजज्याविषमे गम्यात्कोटिः पदे भवेत् ॥ ९५ ॥
śeṣaṃ kaṃdapadaṃtasmādbhujajyā koṭireva ca | gatādbhujajyāviṣame gamyātkoṭiḥ pade bhavet || 95 ||
จากเศษนั้นให้ลบ ‘กันทปทะ’ แล้วจะได้ ภุชยะ (ไซน์) และ โกฏิ (โคไซน์) ในกรณีที่ภุชยะที่ผ่านมามิได้เสมอกัน ให้กำหนดโกฏิ ณ ขั้น (ปทะ) ที่สอดคล้องกัน
Sanatkumara (teaching Narada in a Vedanga/technical context)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It presents śāstric precision as a support for dharma and higher pursuit: disciplined calculation (ganita/jyotiṣa) is taught as part of ordered knowledge that steadies the mind and aids correct practice.
Direct bhakti is not the subject here; instead, it shows that the Purana also preserves auxiliary sciences. Such accurate knowledge can support devotional life by guiding calendrical and ritual timings traditionally linked with Vaiṣṇava observances.
Jyotiṣa/gaṇita procedure: it references bhujajyā (sine) and koṭi (cosine) and indicates stepwise derivation, including handling non-uniform (viṣama) sine progressions.