This paper discusses the comparison on using two types of curves for curve reconstruction. Differential Evolution (DE) is used to optimize the parameter in the related spline function. DE minimized the Sum Square Error (SSE) to find the best curve that fit the data. The two curves namely cubic Bézier and cubic Ball is used for comparison purposes. For the curve reconstruction, the cubic Ball consumes less calculation time compare to cubic Bézier and gives better curve approximation based on the errors result. Visualization and numerical comparison shall be given.

No abstract

No abstract

No abstract

Abstract. In this paper, we study a tumor-immune interaction system in fuzzy environment. By assuming the initial values of the tumor-immune interaction system as fuzzy values, we obtain a fuzzy tumor-immune interaction system. We then use the extension principle of Zadeh to interpret the obtained system and propose its solution numerically by means of fuzzy Euler method.