Arithmetic Checks if a progression is arithmetic or not. An arithmetic series is the sum of a sequence in which each term is computed from the previous one by adding (or subtracting) a constant : Syntax arithmetic?(Progression) arithmetic?(Expression, Identifier) Description arithmetic?(Progression) Given a progression, returns a list. If the progression is not arithmetic, the list just contains an element: false. Else, the list has two elements: true and the value , following the notation above. arithmetic?(Expression, Identifier) Given the expression of the general term and the variable, returns a list. If the progression given by the expression is not arithmetic, the list just contains an element: false. Else, the list has two elements: true and the value , following the notation above. Related functions Category, Geometric progression, Polynomic, Progression Table of Contents Syntax Description Related functions