Scientific calculator was the first company to produce one (Casio fx-7000G). Scientific calculator A scientific calculator is a type of electronic calculator, usually but not always handheld, designed to calculate problems in science, engineering, and mathematics. They have almost completely replaced slide rules in traditional applications, and are widely used in both education and professional settings. In certain contexts such as higher education, scientific calculators have been superseded by graphing calculators, which offer a superset of scientific calculator functionality along with the ability to graph input data and write and store programs for the device. There is also some overlap with the
Willapa Electric Company Willapa Electric Company The Willapa Electric Company was an electric railway and electric utility company incorporated on August 2, 1913, as successor to the Willapa Harbor Railway, a electric street railway extending from Raymond to South Bend, Washington, in addition to other public utilities in the area: Twin City Electric Company and South Bend Electric Company. The company was to be capitalized at $400,000. The organizers were J S Thornton, R L Fisher and M M Fisher. The company was controlled by the Cities Service Power and Light Company. Rail operations continued until July 1930. In 1939, the company sold