Display control method of communication device, control method of server, and recording medium

A control method executed by a server, comprising:

• receiving, from a client terminal, a first formula, a first coordinate range corresponding to the first formula, a second formula, and a second coordinate range corresponding to the second formula;
• calculating plot points as first plot points based on the first formula and the first coordinate range;
• storing the first formula, the first coordinate range and the first plot points in a storage while associating with each other;
• calculating plot points as second plot points based on the second formula and the second coordinate range;
• storing the second formula, the second coordinate range and the second plot points in the storage while associating with each other;
• sending the first plot points and the second plot points to the client terminal;
• receiving information indicating that the client terminal accepted a user operation of moving one area of a first area and a second area on the display screen of the display so as to overlap at least a part of the one area onto the other area of the first and second areas, a first coordinate system having the first coordinate range being displayed in the first area and a second coordinate system having the second coordinate range being displayed in the second area;
• when the first coordinate range and the second coordinate range are different, calculating plot points as third plot points by using the second formula and a coordinate range for integration which is determined based on the first coordinate range and the second coordinate range;
• and
• sending the third plot points to the client terminal.

A display control method executed by a client terminal, comprising:

• accepting input of a first formula and a second formula;
• displaying a first coordinate system having a first coordinate range corresponding to the input first formula and a second coordinate system having a second coordinate range corresponding to the input second formula, on a display screen of a display;
• accepting indication for synthesizing a first area and a second area, the first coordinate system being displayed in the first area and the second coordinate system being displayed in the second area, on the display screen of the display;
• and
• when the first coordinate range and the second coordinate range are different, on the display screen of the display, drawing, in the first area, a graph representing the second formula based on plot points calculated by using both of a coordinate range for integration and the second formula, together with a graph representing the first formula based on plot points calculated by using both of the coordinate range for integration and the first formula, the coordinate range for integration being a coordinate range determined based on the first coordinate range and the second coordinate range.

A non-transitory recording medium having a program recorded thereon that is executable to control a computer:

• accepting input of a first formula and a second formula;
• displaying a first coordinate system having a first coordinate range corresponding to the input first formula and a second coordinate system having a second coordinate range corresponding to the input second formula, on a display screen of a display;
• accepting a user operation of moving one area of a first area and a second area on the display screen of the display so as to overlap at least a part of the one area onto the other area of the first and second areas, the first coordinate system being displayed in the first area and the second coordinate system being displayed in the second area, on the display screen of the display;
• and
• in response to acceptance of the user operation, displaying, on the display screen of the display, an integrated coordinate system having a coordinate range for integration determined based on the first coordinate range and the second coordinate range, and drawing a first graph representing the first formula and a second graph representing the second formula, at the integrated coordinate system displayed on the display screen of the display.

A non-transitory recording medium having a program recorded thereon that is executable to control a computer:

• accepting input of a first formula and a second formula;
• displaying a first coordinate system having a first coordinate range corresponding to the input first formula and a second coordinate system having a second coordinate range corresponding to the input second formula, on a display screen of a display;
• accepting indication for synthesizing a first area and a second area, the first coordinate system being displayed in the first area and the second coordinate system being displayed in the second area, on the display screen of the display;
• and
• when the first coordinate range and the second coordinate range are different, on the display screen of the display, drawing, in the first area, a graph representing the second formula based on plot points calculated by using both of a coordinate range for integration and the second formula, together with a graph representing the first formula based on plot points calculated by using both of the coordinate range for integration and the first formula, the coordinate range for integration being a coordinate range determined based on the first coordinate range and the second coordinate range.