During this week we cover Chapter 5 of Friedman
& Koffman, in which we learn how to repeat a process many
times. We will cover the three C++ loop control statements: **while**, **for**, and
**do-while**. This will complete the three basic program control
structures, being *sequence, selection, *and *repetition.*

The various relevant programs for this week
have been loaded onto **condor**. After logging in, change directory to the **week5** directory
and list the various files as follows:

**cd /home/condor/et181/week5
ls**

- Section 5.1: Counting Loops and the While
Statement

**av_grade.cpp**- determine the average class grade - This is actually a sentinel controlled conditional*while*loop covered in Section 5.5, however we prefer to introduce the while loop form with this program.

**while_bottles.cpp**- recall our two programs**bottles.cpp**and**arg_bottles.cpp**introducing functions with "3 bottles of beer" in the**week2**directory? Well now with a while loop we can have*more*beer! (as many bottles as we wish)

- Section 5.2: Accumulating a Sum or a Product
in a Loop

**computePay.cpp**- computes the payroll for a company

- Section 5.3: The
**for**Statement

**for_bottles.cpp**- introducing the*for*loop with "n bottles of beer" (counting down)

**factorial.cpp**- computes the factorial of a number (refer to the function on Example 5.3)

**temperatureTable.cpp**- conversion of Celsius to Fahrenheit temperature (Example 5.5)

Another common aspect of the

forloop is its use in converting a series summation (Σ) into C++ code. Thus for example, the series summation:

could be represented by the followingforloop:int sum = 0;for(int i = 1; i <= n; i++)sum = sum + i*i; // also: sum += i*i;

- Section 5.4: Conditional Loops

**oilSupply.cpp**- (case study - Monitoring Oil Supply)

- Section 5.5: Conditional Loops

**sumScores.cpp**- accumulates the sum of exam scores (Example 5.6) (very similar to our first program example**av_grade.cpp**)

- Section 5.6: The
**do-while**Statement

**largest.cpp**- finds the largest number in a sequence of integer values (Example 5.10)

- Section 5.8: Nested Loops

**nestedLoops.cpp**- illustrates a pair of nested*for*loops (Example 5.12)

**multiplication.cpp**- Displays the multiplication table

- Lab 5: (One of the following labs will be
done during the 5th lab session)

**lab-integral**- integration using the Trapezoidal Method

**lab-root**- root finding using the Bisection Method

Note that before modifying or compiling any
example in the **week5** directory, you will first need to copy that example
to your home directory, and return to your home directory as in
the following example:

**cp for_bottles.cpp ~
cd**