Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
योगोन्तरेणोनयुतोद्वितोराशीतसंक्रमे । राश्यंतरहृतं वर्गोत्तरं योसुतश्च तौ ॥ ३१ ॥
yogontareṇonayutodvitorāśītasaṃkrame | rāśyaṃtarahṛtaṃ vargottaraṃ yosutaśca tau || 31 ||
सूर्यस्य राश्यन्तरसंक्रमकाले द्व्यशीतिं गृह्णीयात्; तां द्विगुणयित्वा नव योजयेत्, योगान्तरं च ततो न्यसेत्। तत् राश्यन्तरभेदेन हृत्वा, लब्धं शेषयुक्तं गणितमूल्यं गृह्यते॥
Sanatkumara (in instruction to Narada on technical computation)
Vrata: none
Primary Rasa: adbhuta
Secondary Rasa: shanta
It supports Dharma and Moksha-oriented practice by giving a precise Jyotiṣa procedure for determining saṃkrānti-related timing, which is essential for correctly observing vows and sacred rites.
Bhakti practices in the Purāṇic tradition often depend on correct sacred time (kāla). This verse provides a calculation rule so that devotional observances connected to saṃkrānti are performed at the proper moment.
Vedāṅga Jyotiṣa: an algorithmic rule using addition/subtraction and division to obtain a quotient and remainder for saṃkrānti/yoga-related astronomical-astrological determination.