NEC e232 User Guide - Page 71
Accessory
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▼ ▼ Accessory Calculator You can perform addition, subtraction, multiplication and division with the calculator function. It also has a memory function. The calculator can display a result of up to 9 digits. If a calculation results in a number exceeding the maximum, the screen displays error in the calculation field. Calculator Key Assignment For calculator function, the keys are assigned different functions. The following shows the key assignment: key: Addition (+) key: Subtraction (-) ▲ key: Multiplication (×) ▼ key: Division (÷) key: Square Root (√) key: Percent (%) key: Inversion Softkey 1: Memory Recall (2nd)/Memory Cancel Softkey 2: Memory Addition (2nd)/Memory Store key: Equals to (=) CLR key: Delete digit (Held) All clear key: Exit calculator key: Sign inversion (±) key: Decimal Point (.) 2 The calculator can display a result of up to 9 digits. If a calculation results in a number greater than the above maximum, the screen displays error. 59