The Science of the Shulba: A Study in Early Hindu Geometry c10.77

c10.77

"Add to a cord of 36 (*pada* or *prakrama*) 18 and make a mark at 12 and a mark at 15 from its western end. Having fastened the ends of the cord to (the two poles at) the two extremities of the east-west line (of 36 *pada*) stretch it towards the south by taking by the mark at 15 and fix a pole (at the point reached by the mark); (proceed) similarly towards the north. These poles are the two western corners of the *vedi*. For (determining) the two eastern corners, interchange (the ends of the cord) and then stretching it towards the south by the mark at 15, fix a pole at (the point reached by) the mark at 12; (proceed) similarly towards the north. These are the two eastern corners. This is the method of construction with one cord."¹ (Fig. 28.)