3. The apparatus of claim 1 , the processing circuitry to generate time-series information comprising stroke data corresponding to the first strokes, the stroke data comprising a coordinate data series corresponding to points located on a locus of a stroke, a writing order of the first strokes recognizable in the stroke data, and to store the time-series information in a storage medium, the display circuitry to display loci corresponding to the first strokes on the display according to time-series information from the storage medium.
3. The apparatus of claim 1 , the processing circuitry to generate time-series information comprising stroke data corresponding to the first strokes, the stroke data comprising a coordinate data series corresponding to points located on a locus of a stroke, a writing order of the first strokes recognizable in the stroke data, and to store the time-series information in a storage medium, the display circuitry to display loci corresponding to the first strokes on the display according to time-series information from the storage medium. 4. The apparatus of claim 3 , the processing circuitry to calculate a changing direction and a changing quantity to change the coordinate, by using a position of the first character recognizable from the strokes and the position of the second character recognizable from the strokes, and to change the coordinate data series corresponding to the second character in the time-series information, in accordance with the changing direction and the changing quantity.