| 摘要 |
A calculator arranged as a program for a computer or as a stand alone device is arranged so that the processor, input and display are arranged to receive input of values and symbols, and to display using values and symbols, a plurality of approximate and exact numbers including for each such number certain values which determine that number, and to carry out calculations using the plurality of approximate and exact numbers to generate resultant approximate and exact numbers which are each determined by certain resultant values which are determined directly by the calculation, without necessarily applying any simplifying rules (ex. accuracy or precision rules).
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