Choose a calculator (converter still in progress). - 'Scientific' works as any calculator, but with a few extras. M1, or move 1, moves the answer to the first box, and M2 to the second box. - 'Right-angled triangle calculator.' Click on a letter to enter its value. Use the number pad on the left to type in a value. once you are done, press calculate. - 'Basic' works as any normal calculator - 'Fractions' converts mixed fractions into improper fractions. - 'Binary' converts binary numbers into denary ones and vice versa.
Thanks to Mr James for the idea of the binary calculator and also an excuse to get out of doing other homework.