Python Basics

The != operator checks if the value on the left is not equal to the value on the right.

• The symbol for the 'not equal to' operator is =.

• The symbol for the 'not equal to' operator is !=.

• The symbol for the 'not equal to' operator is <>.

• The symbol for the 'not equal to' operator is !==.

The < operator checks if the value on the left is less than the value on the right.

• The output of 4 < 2 is True.

• The output of 4 < 2 is False.

• The output of 2 < 4 is False.

• The output of 2 < 4 is True.

Relational operators are used to compare values and return True or False. Examples include: - > greater than - < less than - == equal to - != not equal to

• Relational operators are used to compare two values and return a Boolean result (True or False).

• Relational operators are used to perform arithmetic operations on numbers.

• Relational operators are used to concatenate strings together.

• Relational operators are used to define variables in programming.

A comment in Python

• A comment is a line that is not executed by Python and is used to explain code. Example: `# This is a comment`

• A comment is a line of code that is executed by Python to perform a specific function.

• A comment is a special character used to denote the end of a Python script.

• A comment is a type of variable that stores user input.

Basic data types in Python

• `int` (integer)

• `decimal` (decimal number)

• `str` (string/text)

• `bool` (True/False)

Types of comments in Python

• Single-line comment (`#`)

• Multi-line comment (`'''` or `"""`)

• Inline comment (`//`)

• Block comment (`/* ... */`)

Relational operators compare numerical or other comparable values in Python.

• Relational operators return a string value: either 'True' or 'False'.

• Relational operators return a Boolean value: either True or False.

• Relational operators return an integer value: either 1 or 0.

• Relational operators return a list of values.

Arithmetic operators in Python

• Operators used for mathematical calculations. Examples: - `+` (addition) - `-` (subtraction) - `*` (multiplication)

• Operators used for string manipulation. Examples: - `+` (concatenation) - `*` (repetition)

• Operators used for logical comparisons. Examples: - `==` (equal to) - `!=` (not equal to)

• Operators used for bitwise operations. Examples: - `&` (AND) - `|` (OR)

A variable in Python

• A variable is a name used to store data values. Example: `x = 10`

• A variable is a fixed value that cannot change.

• A variable is a type of function in Python.

• A variable is a method to perform calculations.

The symbol for the "equal to" operator is ==.

• Relational operators compare numerical or other comparable values in Python.

• The symbol for "not equal to" operator is !=.

• The symbol for "greater than" operator is >.

• The symbol for "less than or equal to" operator is <=