A boolean expression is either true or false. The following examples use the operator ==, which compares two operands and produces True if they are equal and False otherwise:
1 == 1
It returns True.
2 == 1
It returns False.
True and False are special values that belong to the class bool,
print(type(True))
It returns <class 'bool'>
The == operator is one of the comparison operators; the others are:
x != y # x is not equal to y
x > y # x is greater than y
x < y # x is less than y
x >= y # x is greater than or equal to y
x <= y # x is less than or equal to y
x is y # x is the same as y
x is not y # x is not the same as y
Avoid the mistake of using a single equal sign (=) instead of a double equal sign (==).
= is an assignment operator and == is a comparison operator.
There is no such thing as =< or =>.
Please define a function with the name is_on_line which would take three arguments say x1, x2 and x. This function should return True if x is on the one dimensional line joining x1 and x2 like the following diagram:
x1-----x-----x2
If x is outside the line joining x1 and x2, it should return False for example:
x1-----x2-----x
Please note that if x is equal to x1 or x2, it is considered at line. Also, the x1, x2 and x can be negative numbers.
Test Cases:
Input: is_on_line(10, 20, 30)
Expected Output: False
Input: is_on_line(10, 20, 20)
Expected Output: True
Input: is_on_line(10, 20, -10)
Expected Output: False
Input: is_on_line(-4, -5, -4.5)
Expected Output: True
Please note that the previous question in which you had to write bool_func has been removed. So most of the comments below are obsolete now.
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