Students' Guide to Program Design

Developing

an

algorithm

(iii) Check expected results match actual results

Yes,

the expected result for each set of data matches the calculated

result.

The desk checking of this example has illustrated a number of

points. Firstly, algorithms containing a series of mathematical

calculations must be checked thoroughly on paper before the

commencement of program coding. Secondly, the algorithm could be

improved, to ensure that no further testing of the coin denominations

is performed once the change reaches zero. This improvement could

easily be added to the algorithm in pseudocode, as will be illustrated

in the next chapter.

3.4

Chapter summar ...