Describes a simulated computer-aided-graphics (CAD) program at The Pennsylvania State University. Rationale for the program, facilities, microcomputer equipment (Apple) used, and development of a software package for simulating applied engineering graphics are considered. (JN)

Interactive Simulation Language (ISL) is a highly interactive and graphics-oriented language. ISL use in senior design course and introductory system modeling/system behavior course is discussed (including instructional strategies, self-administered instruction, and problem assignment). A description of ISL (including block library and main menu)…

Describes a computer program which allows students to specify rather arbitrary sets of poles and zeros for the transfer function of a linear system. The computer evaluates/plots the systems impulse and step responses individually and displays them in reduced form along with the pole-zero plot. (JN)

In introductory mechanics courses it is often necessary to know the geometric properties of some irregular figure. An interactive program (using an Apple II microcomputer) which allows an instructor to determine the geometric properties of an arbitrary figure is described. Includes mathematical formulation, properties of irregular polygons, and…