Sub procedures

These are small procedures which are part of the overall general procedure of a code. Sub procedures usually control the start and end points of a code, and they also help to trigger other smaller aspects of an entire code, such as styling fonts or moving from one cell to another. You will use sub procedures when you construct your code, so you will always need to make sure that each sub procedure that is started also has a clear end point somewhere in the code. Sub procedures in the code are marked with the color blue, so you will easily be able to spot them as you are constructing your code.