- Advanced Continuous Simulation Language
The

**Advanced Continuous Simulation Language**, or**ACSL**(pronounced "axle"), is acomputer language designed for modelling and evaluating the performance ofcontinuous system s described by time-dependent, nonlineardifferential equations . It is a dialect of theContinuous System Simulation Language (CSSL), originally designed by the Simulations Council Inc (SCI) in 1967 in an attempt to unify the continuous simulations field.**Language Highlights**ACSL is an equation-oriented language consisting of a set of arithmetic operators, standard functions, a set of special ACSL statements, and a MACRO capability which allows extension of the special ACSL statements.

ACSL is intended to provide a simple method of representing mathematical models on a digital computer. Working from an equation description of the problem or a

block diagram , the user writes ACSL statements to describe the system under investigation.An important feature of ACSL is its sorting of the continuous model equations, in contrast to general purpose programming languages such as

Fortran where program execution depends critically on statement order.**Typical Applications**Applications of ACSL in new areas are being developed constantly. Typical areas in which ACSL is currently applied include

control system design,aerospace simulation, chemical process dynamics,power plant dynamics,plant andanimal growth,toxicology models,vehicle handling,microprocessor controllers, androbotics .**Tools Implementing ACSL**The following commercial ACSL simulation based development tools are currently believed to receive active development and support:

[

*http://www.acslx.com The acslXtreme family of products*] , by [*http://www.aegistg.com AEgis Technologies Group, Inc.*]

[*http://www.nhancetech.com/nht_web.nsf/WebPage!openform&p=MMSx The Modular Modeling System(MMS)*] , by [*http://www.nhancetech.com nHance Technologies, Inc*] .

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