[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [The Science of the Shulba: A Study in Early Hindu Geometry](https://indike.org/pramana/ins.science.datta-1932) › c7.5 # The Science of the Shulba: A Study in Early Hindu Geometry c7.5 The Science of the Śulba: A Study in Early Hindu Geometry c7.5 - **Language:** English ### [c7.5](https://indike.org/pramana/ins.science.datta-1932.c7.5) The commentator Rāma was an inhabitant of Naimiṣa (near modern Lucknow). He seems to have been the author of several works such as \*Karma-dīpikā\*, \*Kuṇḍākṛti\* (with commentary), \*Śulba-vārttika\*, \*Śāṅkhyāyana Gṛhya-paddhati\*, \*Samara-sāra\* and its commentary, \*Samara-sāra-saṁgraha\* and the commentaries on the \*Kātyāyana Śulba\* and \*Śāradā-tilaka Tantra\*. The date of composition of the \*Kuṇḍākṛti\* is given as 1506 Vikrama Saṁvat (1449 A.D.). In his commentary on the \*Kātyāyana Śulba\*, Rāma has quoted copiously from his \*Śulba-vārttika\* ("The Critical Annotation of the \*Śulba\*") and also from his commentary on the \*Śāradā-tilaka\*. There is also a quotation from the \*Triśatikā\* of Śrīdhara (\*c.\* 750 A.D.).¹ In this work we notice some new contributions from him. To construct a right-angled triangle having a given leg (a), Rāma suggests the employment of a new rational rectangle (a, 8a/15, 17a/15) in addition to those taught in the \*Śulbas\*.² But the most notable contribution of him is a correction to the well-known \*Śulba\* value of √2, viz., - [Previous: c7.4](https://indike.org/pramana/ins.science.datta-1932.c7.4) - [Next: c7.6](https://indike.org/pramana/ins.science.datta-1932.c7.6) - [Up: c7](https://indike.org/pramana/ins.science.datta-1932.c7) ## Linked texts (1) - [Triśatikā (Pāṭīgaṇitasāra)](https://indike.org/pramana/in.astro.ganita.patibija.trisatika) — Śrīdhara (mathematician), Sanskrit --- Source: [https://indike.org/pramana/ins.science.datta-1932.c7.5](https://indike.org/pramana/ins.science.datta-1932.c7.5) · Pramāṇa