[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) › c4.s7.12 # Jyotihshastra: Astral and Mathematical Literature c4.s7.12 Jyotiḥśāstra: Astral and Mathematical Literature c4.s7.12 - **Language:** English ### [c4.s7.12](https://indike.org/pramana/ins.science.pingree-1981.c4.s7.12) A work on solar and lunar eclipses, the Parvadvayasādhana,²⁹⁷ was written by Mallāri²⁹⁸ in about 1588; this makes plausible his identification with the commentator on Gaṇeśa’s GL. To a large extent the Parvadvayasādhana consists of versified tables of variables necessary for the computation of the phases, durations, and magnitudes of eclipses. Commentaries were composed on it by Viśvanātha in the early seventeenth century, and by Kṛṣṇanātha Dvivedin²⁹⁹ at Vārāṇasī in 1787.³⁰⁰ - [Previous: c4.s7.11](https://indike.org/pramana/ins.science.pingree-1981.c4.s7.11) - [Next: c4.s7.13](https://indike.org/pramana/ins.science.pingree-1981.c4.s7.13) - [Up: c4.s7](https://indike.org/pramana/ins.science.pingree-1981.c4.s7) ## Linked texts (1) - [Grahalāghava](https://indike.org/pramana/in.astro.siddhanta.karana.grahalaghava) — Gaṇeśa Daivajña 1520, Sanskrit --- Source: [https://indike.org/pramana/ins.science.pingree-1981.c4.s7.12](https://indike.org/pramana/ins.science.pingree-1981.c4.s7.12) · Pramāṇa