id summary reporter owner description type status milestone component version severity resolution keywords cc 6019 Convex hull and Area, combined, sometimes give wrong result Crispin Cooper Barend Gehrels "Attached is a program which calculates convex hull from a number of points. The three points actually on the hull are (0,0) (0,105) (0,103) making the hull a triangle with area 1407.5. However, the program (msvc compiler) returns 1406, with the points inserted in the order shown in the cpp file. If all points except the three listed above are removed from the program, the answer returns to 1407.5. Probably this is just me being stupid. In any case thank you very much for your help!" Bugs closed To Be Determined geometry Boost 1.47.0 Problem fixed convex hull area