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JMCAD is an program for the modeling and simulation of complex dynamic systems. This includes the ability to construct and simulate block diagrams. The visual block diagram interface offers a simple method for constructing, modifying and maintaining complex system models. The simulation engine provides fast and accurate solutions for linear, nonlinear, continuous time, discrete time, time varying and hybrid system designs. With JMCAD, users can quickly develop software or "virtual" prototypes of systems or processes to demonstrate their behavior prior to building physical prototypes.

The user builds his system model by selecting predefined blocks from a block library and simply wiring the blocks together. Each block of the diagram performs a function. Users can also create custom blocks in Java and add them to the JMCAD block library.

JMCAD is a block diagram language for creating complex nonlinear dynamic systems. Its fast execution speed is perfect for model based operator training, off-line controller tuning, and hardware in the loop testing. Its efficient Java code generator makes it a great platform for model based embedded system development.

By combining the simplicity and clarity of a block diagram interface with a high-performance mathematical engine, JMCAD provides fast and accurate solutions for linear, nonlinear, continuous time, discrete time, multi-rate, and hybrid systems. Moreover, JMCAD's tightly integrated development platform makes it easy to pass freely between model construction, simulation, optimization, and validation. This lets you create virtual prototypes on your desktop to make sure your design works properly before committing to prototype.

For specialized engineering problems, JMCAD offers a comprehensive set of companion products for frequency domain analysis, Java code generation, communications system modeling, DSP and embedded system design, neural networks and real-time analog and digital I/O.

The program is developed with use of language Java and can be used in various operational systems (Windows, Linux, Solaris, Unix, etc.).