Energy Transfer and Wave basics

a reporter that takes a list of numbers as input and reports the average (mean) value of those numbers

a reporter that either takes an index number and a list as input and reports the item from the input list that is at the position given by the index number, or it takes an index number and a string of text as input and reports the character from the input string that is at […]

a reporter that reports a set of the two agents at the ends of the link

a reporter that reports a set of all the links