TY - JFULL AU - Maria Hussin and Malik Zawwar Hussain and Mubashrah Saddiqa PY - 2015/2/ TI - Circular Approximation by Trigonometric Bézier Curves T2 - International Journal of Computer and Information Engineering SP - 29 EP - 33 VL - 9 SN - 1307-6892 UR - https://publications.waset.org/pdf/10000225 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 97, 2015 N2 - We present a trigonometric scheme to approximate a circular arc with its two end points and two end tangents/unit tangents. A rational cubic trigonometric Bézier curve is constructed whose end control points are defined by the end points of the circular arc. Weight functions and the remaining control points of the cubic trigonometric Bézier curve are estimated by variational approach to reproduce a circular arc. The radius error is calculated and found less than the existing techniques. ER -