iii example programbatch usernames summary exercises defining functions the function of functions functionsinformally future value with function functions and parametersthe exciting details getting results from function functions that return values functions that modify parameters functions and program structure summary exercises decision structures simple decisions exampletemperature warnings forming simple conditions exampleconditional program execution two-way decisions multi-way decisions exception handling study in designmax of three strategy compare each to all strategy decision tree strategy sequential processing strategy use python some lessons summary exercises loop structures and booleans for loopsa quick review indefinite loops common loop patterns interactive loops sentinel loops file loops nested loops computing with booleans boolean operators