Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms....create_polygon ( 0 , 1 , 2 ); a . create_polygon ( 2 , 3 , 0 ); a . create_polygon...create_polygon ( 6 , 2 , 1 ); a . create_polygon ( 6 , 5 , 2 ); a . create_polygon...