Abstract: A method, apparatus, and article of manufacture provide the ability to update a drawing surface in a CAD/GIS computer application. First, a drawing surface is displayed in a CAD/GIS application. A surface edit operation is then performed on the drawing surface. The CAD/GIS application then determines if an automatic rebuild option is active. If the rebuild option is active, the drawing surface is dynamically and automatically rebuilt to reflect the surface edit operation. Alternatively, if the automatic rebuild option is inactive (e.g., toggled off), the drawing surface is flagged as out-of-date.

Abstract: A method and system are disclosed for testing for double shift errors in at least one scan chain of flip-flops during a simulation of the design of a digital integrated circuit chip. At the start of the simulation, outputs of each flip-flop in the scan chain are initialized to a same known symbol (e.g., ‘X’). The flip-flops in the scan chain are clocked to shift binary digital symbols (zeros and ones) into the first flip-flop and through the successive flip-flops in the scan chain. During the shifting and clocking process, successive, contiguous pairs of flip-flop outputs are compared, one pair after each clock cycle. A double shift error is declared between the first flip-flop in the pair and the second flip-flop in the pair if the output symbols of the pair are the same.

Abstract: A simulator running on a single computer may be configured to appear as multiple users simultaneously initiating Internet requests from separate user environments. An engine of the simulator may communicate with a browser to appear as multiple users each having access to a local defined user account or profile in a computer environment. The simulator may be configured to maintain different user profile data for each user appearing to operate within a separate user environment. The simulator may be configured to simulate a user logged into a particular desktop environment that initiates a browser session and then initiates Internet requests via the browser. The simulator may also simulate at the same time a different user in a different user environment initiating a browser session and initiating Internet requests via the browser. The simulator may be configured to appear as multiple, separate users initiating Internet requests from multiple, different user environments.

Abstract: Disclosed are techniques for representing and modeling one or more systems in which each system corresponds to an application mode. This may be done for one or more geometries using local and/or non-local couplings. For each application mode, physical quantities are modeled and may be defined using a graphical user interface. Physical properties may be used to model the physical quantities of each system. The physical properties may be defined in terms of numerical values or constants, and mathematical expressions that may include numerical values, space coordinates, time coordinates, and actual physical quantities. Physical quantities and any associated variables may apply to some or all of a geometric domain, and may also be disabled in other parts of a geometrical domain. Partial differential equations describe the physical quantities. One or more application modes may be combined using an automated technique into a combined system of partial differential equations as a multiphysics model.