| 摘要 |
PURPOSE:To simplify a tabulation work, by providing a ruler with operation and display functions, and displaying results of equal division, unequal division, unit conversion, various functions, etc., as a position and a space of a scale mark. CONSTITUTION:A keyboard 2 is installed to a ruler body 1, and a microcomputer is incorporated. The result of various operations is displayed as a position and a space of a scale mark in a display part 3 consisting of a liquid crystal, etc. A regular fixed scale is shown by 4. As for its function, for instance, equal division such as dividing 10cm into 6 equal parts, unequal division such as dividing length of 15cm into 4.4 and 3.5cm in order, unit conversion from inch to cm, etc., logarithmic display, display of a function such as trigonometrical function, etc., reduction and double reduction, etc. are realized. |
