Mathematics in Ancient and Medieval India c8.235

c8.235

“Multiply half the differencc of the *gatakhaṇḍa* (tabular difference passed over) and *bhogyakhaṇḍa* (tabular difference to be passed over) by the residual arc and divide by 900ʹ ( = h say ). The result is to be added to or subtracted from half the sum of the same two tabular differences according as this (semi-sum) is less or greater than the *bhogya-khaṇḍa*, the (final) result is the true functional difference to be passed over”.