This function is a polynomial in two dimensions, with terms up to degree 5. It is nonlinear, and it is smooth despite being complex, which is common for computer experiment functions (Lim et al., 2002 ...

For example, consider the fifth-order polynomial: Evaluated in the standard way ... Here are a few examples of polynomials in the Horner format: By the way, the multiplications and additions cannot be ...

We solve polynomials algebraically in order to determine the roots - where a curve cuts the \(x\)-axis. A root of a polynomial function, \(f(x)\), is a value for \(x\) for which \(f(x ...