Mathematics in Ancient and Medieval India c4.s4.t1.6

c4.s4.t1.6

In this work he dealt, in addition to the eight fundamental operations, the problems on series and a general formula for the sum of any order of triangular numbers. Nārāyaṇa's method of summation of any order triangular number or *vārasaṃkalita* shortly, has established a way for the development of integration series in connection with quadrature of the circle and allied problems. In his *Bījagaṇita*, besides usual topics on algebra, the method of finding the approximate values of the square-root of a non-square number is noteworthy.