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
1957 Bandy World Championship 1957 Bandy World Championship The 1957 Bandy World Championship was contested among three men's bandy playing nations and was the first ever Bandy World Championship. Norway declined to take part due to the Soviet invasion of Hungary the year before. The championship was played in Finland from 28 February to 3 March 1957, as part of the fifty year anniversary celebrations for the Ball Association of Finland, which at the time was the governing body for bandy in Finland. The tournament was officially opened by President of the republic Urho Kekkonen. All games, which were only three, were played at