| 摘要 |
PROBLEM TO BE SOLVED: To provide an image display device and a program for saving time and labor for replotting on an image when moving a coordinate system superposed on the image.SOLUTION: A scientific electronic calculator includes a CPU for setting a coordinate system in a display area for an image and an input part for forming plot points P within the coordinate system on the basis of a user operation. The CPU 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 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 corrects a coordinate value of each plot point P according to a moving amount in each coordinate axial direction such that a position of each plot point P is maintained on the image before and after the display range of the coordinate system is shifted, updates display of each plot point P on the basis of the coordinate value after correction, and updates display content about the approximate graph.SELECTED DRAWING: Figure 6 |
