| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the need of independently executing the operation processing of only an integration formula and to collectively input/process a whole numerical formula at the time of operating the numerical formula containing the integration formula in an integration operation processing unit. SOLUTION: An integration code '∫' in a numerical formula is detected. Numerical data f(x), section data (a) and (b) and division number data N in the integration formula are divided by ',' (numerical formula dividing code) and ')' (numerical formula termination code) and they are detected. An operation processing in the same way as a complete numerical formula is executed by containing other numerical formula parts. A four rules numerical formula part, an integration numerical formula part, the sections (a) and (b) and a division number N are key-inputted as a series of numerical formulas and the operated result can be obtained by the execution operation of one time.
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