Flow charts are a diagrammatic representation of a set of instructions that must be followed. Flow charts are made up of different boxes, which each have different functions. The flowchart below is to define a number and understand how the incrementing loop (i<= i+1) will work. The flowchart shows the steps as boxes of various kinds and their order by connecting the boxes with arrows. As the math-defined flowchart suggests, The Oval shape is used to show the end and the beginning of the process. The Rectangle shows the steps in the flowcharting process. The Arrow indicates directional flow, and the Diamond indicates a decision.