ELECTRONIC COMPUTER, COMPUTER SYSTEM AND RECORDING MEDIUM STORED WITH COMPUTER READABLE PROGRAM FOR REALIZING ELECTRONIC COMPUTER

摘要

PROBLEM TO BE SOLVED: To provide an electronic computer improved in operability and capable of a plurality of currency conversion even with a little memory capacity. SOLUTION: An electronic computer 1 is provided with a currency converting function and stores a first conversion ratio between original currency before conversion and predetermined reference currency and a second conversion ratio between the reference currency and target currency after conversion on a RAM 7 and performs continuous conversion for converting the original currency to the reference currency while using the first conversion ratio under the control of a CPU and for converting the reference currency to the target currency while using the second conversion ratio. Between the currencies, to which the conversion ratio is directly set, intermittent conversion is performed by multiplication/division while using each of set conversion ratios and between the currencies, to which the conversion ratio is not directly set, two kinds of conversion are automatically and continuously performed from the original currency to the reference currency (common currency) and from the common currency to the target currency by multiplication/division while using each of conversion ratios set through the common currency. Thus, three kinds of currency conversion are performed by two kinds of conversion ratios.