Dear Graphisoft,
Please improve the accuracy of the trigonometrical functions/identities, their impact dealing with every day work on Archicad is beyond significant starting from drawing/plotting of curved geometrical entities, to the calculation of surface areas, to 3D representation, ....& etc.
Besides, their impact on the GDL for creating library part is far greater than expected for the type of objects that my clients (which are also your clients) need.
Best regards