| 摘要 |
A portable electronic device, e.g., a calculator, with the basic functions of addition, subtraction, multiplication and division with a dedicated program for a racing sport is disclosed herein. The calculator incorporates a progressive method of wagering in conjunction with the statistics of the sport to allow the user to calculate the amount of the wager in standard race track acceptable bet amounts on successive races in order to achieve a desired winning amount. The calculator has a processor and program, and a custom keyboard, and a sequential flashing function display which directs a user to perform step by step operations. The calculator automatically calculates intermediate results. In one embodiment, the calculator has a six line display. In another embodiment, the calculator has a scrolling three line display.
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