what is the fullform of HCL

The Hilbert Class Library (HCL) is a collection of C++ classes representing basic mathematical objects such as vectors, linear and nonlinear operators, and functions. HCL also provides algorithms for optimization and linear algebra implemented in terms of these basic classes. The object oriented design of HCL permits algorithms to be coded at a natural level of abstraction, without reference to internal details of data structures and simulators. Because coordinate representations, data storage formats, and other domain-specific idiosyncrasies are not entangled in these implementations, the resulting code is reusable across applications of widely varying size and structure. The design of HCL also results in several very important capabilities, such as the ability to treat very large out-of-core data sets as vector objects, and to manipulate linear operators not defined explicitly by matrices, which distinguish HCL from other object oriented numerics libraries.

nopes.....

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