Finding out the precedence of logic operators
You may remember from mathematics that when you have a complicated mathematical expression, there are rules about how it should be evaluated. For example, in mathematics if you have the following expression: (2 + 3 times 5) then the result is (17) because multiplication should be evaluated before addition. That is, when the expression is evaluated you evaluate it as (3 times 5), then add (2), rather than (2 + 3), then multiply by (5).
Similarly, logic operators have an order of precedence. In this task, you need to research and find out the order of precedence of the logic operators OR, AND and NOT. You can use Google to answer this question and find resources that will explain the precedence of the logic operators. When you find the answer, write it down!
We will test your understanding in the next quiz (you can take the quiz as many times as you like – if you get it wrong, try again!).
When an expression is in brackets (parenthesis)
Note that if an expression is in parenthesis, that is the expression is surrounded by brackets then, as in maths, the expression within the parenthesis will be evaluated first.
An Introduction to Programming Using Python
An Introduction to Programming Using Python
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