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 In certain contexts such as higher education, scientific calculators have been superseded by graphing calculators, which offer a superset of scientific calculator functionality along with the ability to graph input data and write and store programs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
North Eastern Electric Supply Company World at the time. After the First World War it took over the Cleveland and Durham Electric Power Company, the Northern Counties Electricity Supply Company, Durham County Electric Power Company, and Tees Power Station Company. It also took over the assets of the Durham Collieries Electric Power Company and the Hexham & District Supply Company following their liquidations. NESCo opened North Tees Power Station in 1921 and Dunston B Power Station in 1933. In 1927, the company moved into their new headquarters at Carliol House in Newcastle's city centre. The building was designed by Robert Burns Dick. Carliol House Ltd.