Python arithmetic operators order

Barbie 169 Published: 07/25/2024

Python arithmetic operators order

I'll respond in English for you!

In the world of programming, especially with languages like Python, understanding the order of arithmetic operations is crucial. You see, when working with numbers and mathematical functions, knowing the correct sequence of operations can make all the difference.

In Python, as well as many other programming languages, the order of operations follows a specific pattern:

Parentheses: Evaluate expressions inside parentheses first. This ensures that any calculations within those brackets are performed before moving on to the next step. Exponents: Next, evaluate any exponentiation (e.g., 2^3) from left to right. Multiplication and Division: Perform any multiplication or division operations from left to right. Addition and Subtraction: Finally, perform any addition or subtraction operations from left to right.

Here's a simple example to illustrate this:

2 + 3 * 4 - 5

Following the order of operations (PEMDAS), we'd evaluate it as follows:

Parentheses: None. Exponents: None. Multiplication and Division: 3 * 4 = 12 Addition and Subtraction: 2 + 12 = 14 14 - 5 = 9

So, the final result would be 9.

Now, imagine you're working with more complex mathematical expressions or even functions within your code. Understanding the correct order of operations helps ensure that your calculations are accurate and your program behaves as intended.

In Python specifically, it's essential to follow this order when using operators like:

Arithmetic: +, -, *, /, % Comparison: ==, !=, <, >, <=, >= Logical: and, or, not

Remember, Python (and most programming languages) follows the PEMDAS (or BODMAS in some countries) rule to evaluate expressions correctly. By following this order, you can avoid potential errors and create more reliable code.

There you have it! The order of arithmetic operations in Python is simple yet crucial for any programmer to master.

Python arithmetic operators list

I'll respond in English for this one! Here is the list of Python arithmetic operators:

Basic Arithmetic Operators

Addition (+): This operator adds two numbers together and returns their sum.

Example:

a = 10

b = 5


result = a + b


print(result)  # Output: 15
Subtraction (-): This operator subtracts one number from another and returns the result.

Example:

a = 20

b = 8


result = a - b


print(result)  # Output: 12
Multiplication (*): This operator multiplies two numbers together and returns their product.

Example:

a = 4

b = 5


result = a * b


print(result)  # Output: 20
Division (/): This operator divides one number by another and returns the result.

Example:

a = 12

b = 3


result = a / b


print(result)  # Output: 4.0
Modulus (%): This operator returns the remainder of dividing one number by another.

Example:

a = 17

b = 5


result = a % b


print(result)  # Output: 2

Exponentiation Operators

Power ()**: This operator raises one number to the power of another and returns the result.

Example:

a = 2

b = 3


result = a ** b


print(result)  # Output: 8

Floor Division (//): This operator divides one number by another, rounds down to the nearest whole number, and returns the result.

Example:

a = 17

b = 5


result = a // b


print(result)  # Output: 3

These are the basic arithmetic operators in Python!

Related Articles