History of Hindu Mathematics: A Source Book v2.c17.s19.19

v2.c17.s19.19

“On performing the *viṣama-saṅkramaṇa* between the square of the perpendicular (of the known isosceles trapezium) and an optional number, the greater result will be the equal sides of the (required) isosceles trapezium; half the sum and difference of the smaller result and the moieties of the face and base (of the known figure) will be the base and face (respectively of the required figure).”¹