The Canon F-766S pocket-sized calculator handles a total of 349 functions, and its large, high-contrast LCD makes calculations easy and comfortable. The Canon F-766S includes Mathematics, Trigonometry, Computer math and Statistics, and also provides a host of unique functions, an LCD brightness adjuster, a battery strength indicator and 38 built-in formulas. The dual power - solar and battery - allows you to perform your calculations whether you are in the school or on the go. It also provides a removable hard cover case which protects it against damage when you are on the move.