| 摘要 |
A symbol display device that displays a symbol for data while disposing the symbol at a coordinate position indicated by the data concerned, includes a pre-movement image position obtaining unit that records into a recording unit a pre-movement coordinate position at which the symbol is disposed; an image moving unit that moves the symbol to a coordinate position indicated by an instruction upon reception of the instruction; a post-movement image position obtaining unit that records, into the recording unit, a post-movement coordinate position of the symbol moved by the image moving unit; and a connection line drawing unit that connects the post-movement coordinate position and a pre-movement coordinate position by a line, and changing the line thickness of the connecting line or the size of the symbol.
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