Patent attributes
Disclosed is a figure rendering apparatus including: a figure displaying section to display a figure by rendering the figure in a display screen; a setting section to set an arbitrary point on a rendering figure as a moving point, a moving range of the moving point, and an arbitrary point on the rendering figure as a locus point on a basis of a user's operation; and a control section to render a locus of the locus point in the display screen when the moving point moves in the moving range; to obtain a plurality of pieces of position information of the locus point in the locus; and to judge whether the plurality of pieces of position information obtained by the control section fits predetermined functional formulae or not, and to display information of a functional formula judged to be fit by the pieces of position information in the display screen.