| 摘要 |
Apparatus for use with a electronic calculator of the type having a keyboard input wherein the apparatus comprises means for receiving input pulses and for generating a number of output pulses for each input pulse, respectively, with one of the output pulses being used to actuate the numeral portion of the electronic calculator while another output pulse is used to actuate the portion of the calculator having to do with an arithmetic function, such as add or subtract. The apparatus further includes a device for deactuating the output pulse generating means after a predetermined number of output pulses have been generated. The input device of the apparatus can be a count probe, an architect's probe, an engineer's probe or planimeter.
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