Executive functions (also known as cognitive control and supervisory attentional system) is an umbrella term for the management (regulation, control) of cognitive processes, including working memory, reasoning, task flexibility, and problem solving as well as planning and execution.
Definition of finite. 1  1a : having definite or definable limits a finite number of possibilitiesb : having a limited nature or existence finite beings. 2  2 : completely determinable in theory or in fact by counting, measurement, or thought the finite velocity of light.
Finite Difference. In mathematics, finite differences deals with the changes that takes place in the value of the function, the dependent variable, due to change in the independent variable. Finite difference is a mathematical expression of the form $g(x + b)$ - $g(x + a)$. It is a technique to find the approximate value of the differential equations. The FD approximation for the derivatives is one of the old and easy way to solve differential equations.