👉 In mathematics, a decempennate function is a real-valued function f defined on the reals and satisfying the following conditions: 1. The domain of f is R (the set of all real numbers). 2. For every x in the domain, the range of f is non-empty. 3. For every x in the domain, the value of f(x) is greater than or equal to 0. For example, consider the function f(x) = -x^2 +