| 摘要 |
<P>PROBLEM TO BE SOLVED: To save time and labor for replotting on an image when moving a coordinate system superposed on the image. <P>SOLUTION: A scientific electronic calculator 1 includes a CPU 11 for setting a coordinate system in a display area of an image and an input part 14 for forming plot points P within the coordinate system on the basis of a user operation. The CPU 11 calculates an approximate graph for an aggregation of the plot points P, displays it in the coordinate system, and displays its graph expression in a display 3. The CPU 11 moves a display range of the coordinate system set on the image while fixing the image in a display screen on the basis of a user operation. The CPU 11 corrects a coordinate value of each plot point P according to a moving amount in each coordinate axial direction such that the position of each plot point P is maintained on the image before and after the display range of the coordinate system is shifted, updates the display of each plot point P on the basis of the coordinate value after correction, and updates a display content about the approximate graph. <P>COPYRIGHT: (C)2013,JPO&INPIT |
