A major overhaul of the user interface, the introduction of an integrated programming language and new option modules highlight Ver. Although you don't have to go through a hierarchy, the package still maintains labbooks, datasets and worksheets to provide a simple method of organizing large complex datafiles and projects. As part of the Windows implementation, Ver. 4.0 also gives users the ability to define their own operations and functions to a far greater extent than the macros found in the previous version. Modeled on C, it provides all the expected facilities including user-defined functions, looping and iteration, conditional statements, array references and variables.
Variables can be global to a session or local to a function.
An interesting feature is the hot variable, which can contain real or complex numbers, strings, data series and matrices. A hot variable links a formula to a variable so that when a dependent element of a formula changes, the hot variable automatically reevaluates. Also improved is the package's hardcopy facility. Among its algorithms are those that handle PID loops as well as lead and lag controllers. Inc. All rights reserved.