Algorithm Declare count As Integer Control Declare num As Integer Declare total As Integer Declare avg As Real count = 0 total = 0 num = 90 avg = Process AvgSoFar( total, num ) num = 95 avg = Process AvgSoFar( total, num ) Print “num = ” + num Print “total = ” + total Print “count = ” + count Print “avg = ” + avg End AvgSoFar( sum As Integer&, val As Integer )As Real Declare answer As Real count = count + 1 val = val + 5 sum = sum + val answer = sum / count Return answer OK, I understand which are global and local variables and the call-by-value and call-by-reference for the AvgSoFar module. What I don't understand is how to work the num variable so that the total and num (for Process AvgSoFar) are inserted for val and sum and how the answer returns. It is my understanding the answer returns to avg value. However, I cannot make sense of the total being the value for sum when the original total value is 0 ... not to mention I haven't a clue about what is counted. Can anyone explain the workings of this and supply the variable values with explanation? I'm learning.

You have: count = 0 total = 0 num = 90 avg = Process AvgSoFar( total, num ) which is the same as: avg = Process AvgSoFar( 0, 90 ) the function AvgSoFar takes 0 as sum and 90 as val therefore, sum now = 0 and val now = 90. add 1 to count add 5 to val add val to sum count = 1 val = 95 sum = 95 answer = (sum / count) = (95/1) = 95 avg = answer (answer is the result of the function) Then the function is called again Hope this helps --Mike

I thought I was doing it right. It just made no sense to me to not return and continue recalculating. I suspect I was trying to make this simple bit far more complicated, LOL. Thank you for being my second brain! I'm learning.