Calculator for example, solve quadratic equations symbolically. The first graphing calculator was the Casio fx-7000G released in 1985. The two leading manufacturers, HP and TI, released increasingly feature-laden calculators during the 1980s and 1990s. At the turn of the millennium, the line between a graphing calculator and a handheld computer was not always clear, as some very advanced calculators such as the TI-89, the Voyage 200 and HP-49G could differentiate and integrate functions, solve differential equations, run word processing and PIM software, and connect by wire or IR to other calculators/computers. The HP 12c financial calculator is still produced. It was
The Electric Company June Angela. Due to the overwhelming—and somewhat unexpected—popularity of the initial DVD release, a second boxed set was released on November 14, 2006 ("The Best of the Electric Company: Volume 2"). This second volume contained 20 episodes from seasons one through five plus a 30-minute documentary on the effects of in-school viewings of "The Electric Company" from 1975. Cast members Luis Ávalos, Jim Boyd, Judy Graubart, Skip Hinnant, and Hattie Winston provided commentary and reflected on their years on the show. However, the original content of nine episodes presented in this set were altered. In some cases, material that was