Arithmetic

• Average — The arithmetic mean (sum divided by count) of a list of numbers, points or vectors.
• Formula — One value computed by a typed formula, such as `wall * 2 + max(gap, 1 mm)`.
• Maximum — The largest item of a list.
• Minimum — The smallest item of a list.
• Sum — Adds up every item of a list: numbers to one number, vectors to one vector, component by component.