ESL - A New Continuous System Simulation Language

Article Abstract:

ESL is a new Continuous System Simulation Language (CSSL) which is being developed under contract from the European Space Agency. It is based on the concepts outlined in Reference 6. The main features of the new languages are: (1) models can be built from submodels (2) separation of model and experiment (3) advanced discontinuity-handling (4) a parallel segment feature. The implementation of ESL requires both an interpreter and a translator version of the language. The interpreter translates the user's program into an intermediate code (H-code) which is then interpreted at run time. The translator may be used to convert the H-code to FORTRAN-77 to produce a more efficient executable program of production runs. The entire system (with the exception of a few low-level routines) is being written in FORTRAN-77. A prototype version of the language was installed in Aaugust 1983 and is currently undergoing evaluations. Details of this version are given with examples of its use.

Programming languages, Product development, Implementation, Models, Simulation, Software Design, FORTRAN, FORTRAN (Programming language), Simulation Languages, Programming Language, Prototype

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Another Method for Random Number Generation on Microcomputers

Article Abstract:

A random number generator written for PASCAL or BAL has been put on a microprocessor. The UNIVAC system is the host for the simulator. A specific number of integers must be input in consecutive order. The system will then manipulate the numbers in a variety of ways, depending on the system request, generating a binary arithmatic equation.

Microprocessor, Statistics (Data), Microcomputer, Microprocessors, Statistics, Random Number Generation

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