This calculator offers the calculating capacity needed for most office calculating work. It has an extensive 16-digit display to let users handle any large figures. As many as 7 memories (1 independent, 1 for constants and 5 for accumulating/data storage) plus an item counter facility, help to make working out tough problems easy, quick and convenient. A touch key deals in seconds with calculations that used to involve tedious references, such as percentages, square roots, powers, reciprocals and sign changes. CASIO's unique [DATE]-key quickly traces days and dates and delivers answers to a multitude of financial calculations such as loans, deposits, in-terest, insurance, etc. The pre-programmed standard deviation functions are most helpful. The [PROGRAM]-key computes the sum, arithmetical mean or standard deviation required in statistics by simply entering the data. Then users just de-press the appropriate key to get their answer. In addition, users can swiftly process more complicated statistical calculations involving totalled data by using the seven memories.