Arithmetic & Relational Operators

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Arithmetic Operators

Operators are symbols that represent a specific function within a program.

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Basic operators

Addition is done using a + sign.
Subtraction is done using a - sign.
Division is done using a / sign.
Multiplication is done using a * sign.
Exponentiation is done using a ^ or ** sign.

Modulo operator

The modulo operator gives the remainder of the division of two numbers.
For example:
- 5 MOD (or %) 2 would be equal to 1.

Integer division

The integer division operator returns the quotient (whole part) of a division.
For example:
- 5 DIV (or //) 2 would give 2.

Relational Operators

Relational operators compare two values, and produce a True or False value.

Equality

We can test if two values are equal using the equality operator. For example:
- 2 == 2 would evaluate to True.
We can test if two values are not equal using the not-equal-to operator:
- 2 != 2 would evaluate to False.

Comparison

We can compare two numbers using the less than and greater than signs. For example:
- 2 < 3 evaluates to True.
- 2 > 3 evaluates to False.
We can test for less than or equal, or greater than or equal like this:
- 2 <= 3 evaluates to True.
- 3 >= 3 evaluates to True.

1Introduction to Python

1.1Python

1.1.1Python

1.2Input & Output

1.2.1Input & Output

1.3Data Types

1.3.1Data Types

1.4Variables & Constants

1.4.1Variables & Constants

1.5Operators

1.5.1Arithmetic & Relational Operators

1.5.2Boolean & Assignment Operators 2

1.6Program Flow

1.6.1Selection

1.6.2Iteration

2Data Structures

2.1Lists & Strings

2.1.1Lists

2.1.2Strings

2.2File Handling

2.2.1File Handling

3Modularity

3.1Subroutines

3.1.1Subroutines

3.2Data Flow

3.2.1Data Flow

4Good Practice

4.1Naming & Whitespace

4.1.1Identifiers

4.1.2Whitespace

4.2Comments

4.2.1Comments

4.3Exceptions

4.3.1Exceptions

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