QUESTION 16:
What is the value of the following expression?
2 + 4/2 + 1
24 / 2 - 8
------
12 - 8
---------
4
When there are two (or more) operators of equal precedence, the expression is evaluated from left to right. Examples:
2 * 7 * 3
-----
14 * 3
-------
42
|
4 - 2 + 5
-----
2 + 5
-------
7
|
Usually it doesn't matter if evaluation is done left to right or in any other order. In algebra it makes no difference; But with compuer math it sometimes makes an important difference. This will be discussed in a few pages.
What is the value of the following expression?
2 + 4/2 + 1