Week 6 - Consolidation, Random Numbers, and Recursion

This is a week of consolidation, in which we cover Chapter 6 (Modular Programming) and Chapter 7 (Simple Data Types) of Friedman and Koffman. We also introduce Random Numbers (mainly associated with lab 6) and Recursive Functions.

The various relevant programs for this week have been loaded onto condor. After logging in, change directory to the week6 directory and list the various files as follows:

cd /home/condor/et181/week6
ls

• Section 6.1: Value and Reference Parameters
  computeSumAve.cpp - computing the sum and average of two numbers, introducing Call-by-Value and Call-by-Reference parameters (p 294)
  void computeSumAve(float, float, float&, float&);
  
• Section 6.2: Functions with Output and Input Parameters
  testGetFrac.cpp - reads a fraction typed in by a user and returns the numerator and denominator (p 304)
  swap.cpp - swapping the values of 2 float variables (swap.pdf overheads)
  
• Section 6.4: Using Objects with Functions
  testMoneyToNumber.cpp - removing the $ sign and , from a money string (p 322)
  
• A paradigm for the for loop usage in our third programming exercise
  sin.cpp - for loop - two columns of n coordinate points [x, sin(x)] - introducing <iomanip>
  
• epsilon.cpp - <cfloat> the smallest (FLT_EPSILON) and largest (FLT_MAX) float values
  rightri.cpp - determine if 3 sides form a right-angled triangle within a defined error margin (epsilon) - NEVER compare floats for equality!
  try_pie.cpp - test a rational fraction approximation for pi (The first millon digits of p)
  
• Section 6.6: Recursive Functions (in directory recursion)
  chatter.cpp - an infinite recursive loop - simulating a typical meeting between two good folk at the steps of the Old Court House in Athens, Ohio.
  n_chatter.cpp - a "n" limited recursive loop
  re_bottles.cpp - 99 bottles of beer using a recursive function
  re_fact.cpp - factorial table using a recursive function
  
• random10.cpp - Introducing random numbers
  
• Lab 6: lab_area - the area under a sine curve using a Monte Carlo (random) method
  
  

Telnet: "condor"