The Smith chart appeared in 1939 (Ref. 1) as a graph-based method of simplifying the complex math (that is, calculations involving variables of the form x + jy) needed to describe the characteristics ...

What Is a Gantt Chart and How Does It Work? Your email has been sent Learn how to manage projects by using a Gantt chart, and which industries and project types it would benefit most. Discover the ...

Forbes contributors publish independent expert analyses and insights. I write about the future of learning, work and human development. Tillman found his voice at the MET High School in Providence.