VR&D (Vanderplaats Research & Development, Inc.) is a company that specializes in providing optimization software and engineering services. Their flagship product, DOT (Design Optimization Tools), is a library of software modules designed to solve a variety of nonlinear constrained or unconstrained optimization problems. They also offer the VisualDOC general-purpose graphics-based multidiscipline design optimization software, the BIGDOT optimizer for solving very large-scale optimization problems, the GENESIS structural analysis and optimization software, and the Design Studio for GENESIS, among other products and services.

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VR&D (Vanderplaats Research & Development, Inc.)