We ran into a subtle issue with the En-ROADS model and the latest SDE where sde would fail in the case where a subscripted variable is only partially defined in the mdl file. For example: Constant ...

Abstract: The conventional axiomatic definitions are given for multiple assignment to simple variables and for assignment to a single subscripted variable, along with examples to illustrate their use.

All subscripted indices are converted into the 'Subcript' function in mathematica, which naturally supported multiple indices. While converting back from mathematica, the subscript function is ...

You can pass expressions and subscripted matrices as arguments to a module, but you must be careful and understand the way IML evaluates the expressions and passes results to the module. Expressions ...

I have been trained to regard an array in the ALGOL 60 sense as a finite set of elementary, consecutively numbered variables, whose “identifiers” could be “computed”. But for two reasons this view ...

On the compilation of subscripted variables By R. E. Nather Posted Apr 1 1961 Join the Discussion View in the ACM Digital Library ...