| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To easily display logarithmic graph data by easily setting and displaying the X axis and the Y axis on the logarithmic axis in a logarithmic axial graph plotter. <P>SOLUTION: An X coordinate range and a Y coordinate range are inputted and set in a setting image screen (View Window)(H) of a graph range displayed according to operation of a "range" key, and graph data is plotted and displayed on the XY coordinate axis by calculating graph plot data (x1, y1)(x2, y2) to (xn, yn) corresponding to an optional graph function expression on the basis of this coordinate range. When checking a logarithmic graph display check box ([]x-Log)([]y-Log) in the setting image screen (View Window)(H), the logarithmic coordinate axis according to the set XY coordinate range is set and plotted, and the graph plot data (x1, y1)(x2, y2) to (xn, yn) is also converted into respective corresponding logarithmic values (log(x))(log(y)), and is plotted and displayed as the logarithmic graph data. <P>COPYRIGHT: (C)2004,JPO</p> |
