Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
द्विघ्नं जीवाथ जीवार्द्धवर्गे शरहृते युते । व्यासोष्टतेभवेदेवं प्रोक्तं गणितकोविदैः ॥ ४८ ॥
dvighnaṃ jīvātha jīvārddhavarge śarahṛte yute | vyāsoṣṭatebhavedevaṃ proktaṃ gaṇitakovidaiḥ || 48 ||
„Zuerst verdopple die Größe, die jīva genannt wird; dann füge sie dem Quadrat der Hälfte der jīva hinzu und addiere auch den Wert, der nach dem Abzug von fünf entsteht. Auf diese Weise wird das Ergebnis ‘achtundzwanzig’“, so lehren es die Kundigen der Rechenkunst.
Sanatkumara (teaching Narada in a technical/vedāṅga-style exposition)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It shows that Moksha-Dharma teaching in the Narada Purana also preserves śāstric disciplines like gaṇita—training the mind in precision, pramāṇa (valid measurement), and disciplined reasoning that supports higher inquiry.
This specific verse is not a bhakti instruction; it is a technical gaṇita rule. In the wider Narada–Sanatkumara dialogue, such disciplines function as supportive knowledge, while devotion to Vishnu remains the primary liberating path.
Gaṇita-style computation using symbolic numerals (e.g., śara = 5) and algebraic operations (doubling, squaring, adding/subtracting) is highlighted—useful for calendrics, astronomy (jyotiṣa), and ritual measurements.