Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
वृत्तांगांशकृतिर्वेधनिप्रीयनकरामितौ । वारिव्यासहतं दैर्ध्यंवेधांगुलहतं पुनः ॥ ५२ ॥
vṛttāṃgāṃśakṛtirvedhaniprīyanakarāmitau | vārivyāsahataṃ dairdhyaṃvedhāṃgulahataṃ punaḥ || 52 ||
Chu vi được tính bằng cách nhân đường kính với hằng số đã lập (giá trị xấp xỉ). Đường kính được đo bằng bề ngang ngón tay (aṅgula) đến tận móng; rồi chiều dài lại được tính bằng cách nhân theo các đơn vị aṅgula.
Narada (teaching in a technical-ritual context within Moksha Dharma)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It highlights that Dharma is supported by precision: correct measurement and accepted standards safeguard ritual order, which in turn steadies the mind for Moksha-oriented discipline.
Indirectly: Bhakti in the Purana is not opposed to method; careful, rule-based practice (when worship involves rites) is presented as a way to offer worship without negligence.
Practical measurement and computation—using aṅgula-based units and an accepted approximation for relating diameter and circumference—knowledge akin to Śulba/kalpa-style technical procedure used in ritual settings.