[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [Jyotihshastra: Astral and Mathematical Literature](https://indike.org/pramana/ins.science.pingree-1981) › c5.s1.67 # Jyotihshastra: Astral and Mathematical Literature c5.s1.67 Jyotiḥśāstra: Astral and Mathematical Literature c5.s1.67 - **Language:** English ### [c5.s1.67](https://indike.org/pramana/ins.science.pingree-1981.c5.s1.67) After Bhāskara the next major authority on mathematics was Nārāyaṇa,⁵¹ who completed his Gaṇitakaumudī⁵² in 1356. The GK contains the traditional paribhāṣā, parikarmas, and vyavahāras, followed by the pulverizer, “Pell’s equation,” factors,⁵³ combinations, and magic squares. Before writing the GK Nārāyaṇa had written a work on algebra, the Bījagaṇitāvataṃsa.⁵⁴ This work covers arithmetical operations involving positive and negative numbers and zero; irrational numbers; the pulverizer and “Pell’s equation” (these two were drawn upon for the corresponding section in the GK); various kinds of linear and quadratic equations with one or more unknowns (the text is not extant beyond the beginning of the section on linear equations); and equations involving the product of different unknowns. Thus it is modeled directly on the BG. - [Previous: c5.s1.66](https://indike.org/pramana/ins.science.pingree-1981.c5.s1.66) - [Next: c5.s1.68](https://indike.org/pramana/ins.science.pingree-1981.c5.s1.68) - [Up: c5.s1](https://indike.org/pramana/ins.science.pingree-1981.c5.s1) ## Linked texts (3) - [Bījagaṇita](https://indike.org/pramana/in.astro.ganita.patibija.bijaganita) — Bhāskara II, Sanskrit - [Bījagaṇitāvataṃsa](https://indike.org/pramana/in.astro.ganita.patibija.bijaganitavatamsa) — Nārāyaṇa Paṇḍita (mathematician), Sanskrit - [Gaṇitakaumudī](https://indike.org/pramana/in.astro.ganita.patibija.ganitakaumudi) — Nārāyaṇa Paṇḍita (mathematician), Sanskrit --- Source: [https://indike.org/pramana/ins.science.pingree-1981.c5.s1.67](https://indike.org/pramana/ins.science.pingree-1981.c5.s1.67) · Pramāṇa