| http://www.w3.org/ns/prov#value | - FIG. 8 shows the status after a function key 81 has been depressed to set the second function mode and functions such as "sin and cos" assigned to the keys are displayed on sub-displays 82A-82D. When the key 7 , for example, is depressed, the operation of "sin 12.50??? is carried out and the result is displayed on a main-display 83 and only the indication "sin is displayed on the sub-display 8
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