METHOD FOR CONTROLLING DATA OPERATOR

摘要

PURPOSE:To improve the speed of calculation in the case of repeating calculation in which only parts of a data value group are changed, by executing an operational formula containing a reference variable set or changed by a user and another operational formula which uses the substituted variable of the above mentioned operational formula as a reference variable only. CONSTITUTION:A user keys in the value and kind of data to be set or changed through a keyboard 1. A judging circuit 3 judges the content on an input buffer 2 and the storing location of the data value on a data memory 4. Data of documents and tables inputted and implemented by the user are stored on a data memory 4. Defined operational formulae are stored on an operational formula memory 5. An operational formula retrieving circuit 6 searches whether or not an operational formula related to the variable of the data value set by the user is on the memory 5. When an appropriate operational formula is found by the searching, a No. obtained by adding a code to the operational formula is registered in an operational formula execution controlling table 7. The operational formula is executed by a processing circuit 8 and the executed result is displayed on a display device 10.