Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
घनं च विषमादेवं घनमूलं मुर्हुभवेत् । अन्योन्यहारनिहतौ हरांशौ तु समुच्छिदा ॥ २१ ॥
ghanaṃ ca viṣamādevaṃ ghanamūlaṃ murhubhavet | anyonyahāranihatau harāṃśau tu samucchidā || 21 ||
ഇങ്ങനെ വിഷമസംഖ്യയുടെ ഘനം എടുത്താൽ, നിശ്ചിതവിധിപ്രകാരം അതിന്റെ ഘനമൂലം ആവർത്തിച്ച് ലഭിക്കുന്നു. കൂടാതെ ഭാഗ്യവും ഭാജകവും (അഥവാ അവയുടെ ഭാഗങ്ങൾ) പരസ്പരഹരത്താൽ നിഹതമാകുമ്പോൾ, ഹരവും ഹരാംശവും പൂർണ്ണമായി കുറിഞ്ഞ് റദ്ദാകുന്നു.
Sanatkumara (teaching Narada in an instructional sequence)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It shows that Moksha-oriented instruction in the Narada Purana also preserves shastric discipline: clarity of method, repeated practice, and precise reduction—habits that support steadiness of mind for dharma and liberation.
Indirectly: the verse models careful, rule-based practice (abhyāsa). The same steadiness and exactness are expected in Vishnu-bhakti—regular repetition and removal of “remainders” like doubt and distraction.
It highlights computational procedure—cube-root extraction and cancellation/reduction of parts—skills aligned with the technical tradition that supports Vedanga disciplines (especially Jyotisha’s arithmetic foundations).