Matwrap is a tool for interfacing C++ code into matrix-oriented scripting languages such as Matlab 5, Octave, and tela. It generates all the code to convert from the scripting language's internal types into the types that your C++ code understands (e.g., double, char *, float *, struct abc *). You do not need to understand any of the API details of the language to use your C++ code; just give matwrap a .h file describing your functions. Brief list of features: (1) Functions are automatically vectorized. (2) Arguments containing dimensions of other vector and matrix arguments can be computed automatically and need not be specified. (3) Pointers to structures and classes are supported. Public member functions of classes may be called, and public data members may be evaluated or set. Inheritance is supported.