1. A curve division device, comprising: at least N (N≧2, N being an integer) processor elements each having a different setting value assigned thereto; a reception unit receiving curve information indicating a Bézier curve from an outside source; a first execution unit causing each of the N processor elements to execute a division algorithm of taking the curve information as initial input data and repeatedly (i) generating two divided curves by dividing the Bézier curve indicated by the input data, (ii) selecting one of the two divided curves in accordance with the setting value assigned thereto, and (iii) defining new input data indicating the divided curve thus selected for subsequent division, until the divided curve selected by each of the N processor elements is different; and a second execution unit causing each of the N processor elements to execute a determination algorithm of determining one or more line segments approximating an ultimately selected divided curve resulting from the division algorithm.