| 摘要 |
PROBLEM TO BE SOLVED: To provide a more convenient increase/decrease chart display function when comparing an inputted formula graph and an increase/decrease chart by displaying them. SOLUTION: A parameter type graph window W3 is displayed in a first display area G1 of an LCD 1202, and a parameter type increase/decrease chart window W2 is displayed in a second display area G2. A coordinate axis A, an inputted formula graphic line L, and a pointer P are displayed on the graphic window W3. An arrow mark M1 is displayed above the pointer P, and an arrow mark M2 is displayed to the right of the pointer P. The arrow marks M1 and M2 are made to point to the same direction as the directions of the X component and the Y component of the increase/decrease chart at positions where the pointers P are displayed, respectively. COPYRIGHT: (C)2008,JPO&INPIT
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