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How to use Python arithmetic symbols

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Release： 2023-12-11 15:27:00

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Introduction to the usage of Python operation symbols: 1. Addition operator (), adds two numbers, such as: a b; 2. Subtraction operator (-), adds the second number from the first number Subtract, such as: a - b; 3. Multiplication operator (*), multiply two numbers, such as: a * b; 4. Division operator (/), divide the first number by the second Number, such as: a / b; 5. Integer division operator (//), returns the integer part of the first number divided by the second number, such as: a // b, etc.

How to use Python arithmetic symbols

The operating system for this tutorial: Windows 10 system, Python version 3.11.4, DELL G3 computer.

The usage of Python operators is slightly different depending on the specific operator type. Below I will explain their usage one by one according to the operator type.

1. Arithmetic operators:

Addition operator ( ): Add two numbers, such as: a b.
Subtraction operator (-): Subtract the second number from the first number, such as: a - b.
Multiplication operator (*): Multiply two numbers, such as: a * b.
Division operator (/): Divide the first number by the second number, such as: a / b.
Integer division operator (//): Returns the integer part of the first number divided by the second number, such as: a // b.
Remainder operator (%): Returns the remainder of the first number divided by the second number, such as: a % b.
Power operator (**): Returns the second power of the first number, such as: a ** b.

2. Comparison operator:

Equal operator (==): Check whether two numbers are equal , returns a Boolean value True or False, such as: a == b.
Inequality operator (!=): Checks whether two numbers are not equal and returns a Boolean value True or False, such as: a != b.
Greater than operator (>): Checks whether the first number is greater than the second number and returns a Boolean value True or False, such as: a > b.
Less than operator (<): Checks whether the first number is less than the second number and returns a Boolean value True or False, such as: a < b.
Greater than or equal to operator (>=): Checks whether the first number is greater than or equal to the second number, and returns a Boolean value True or False, such as: a >= b.
Less than or equal to operator (<=): Checks whether the first number is less than or equal to the second number, and returns a Boolean value True or False, such as: a <= b.

3. Logical operators:

And operator (and): Check whether multiple conditions are met at the same time , returns a Boolean value True or False, such as: condition1 and condition2.
Or operator (or): Checks whether at least one of multiple conditions is satisfied, returning a Boolean value True or False, such as: condition1 or condition2.
Non operator (not): reverses the result of the condition and returns a Boolean value True or False, such as: not condition.

4. Bitwise operators:

Bitwise AND operator (&): performs operations on two numbers Bitwise AND operation returns the result of bitwise AND, such as: a & b.
Bitwise OR operator (|): performs a bitwise OR operation on two numbers and returns a bitwise OR result, such as: a | b.
Bitwise XOR operator (^): performs bitwise XOR operation on two numbers and returns the result of bitwise XOR, such as: a ^ b.
Bitwise negation operator (~): performs a bitwise negation operation on a number and returns the bitwise negation result, such as: ~a.
Left shift operator (<<): Shifts the binary representation of a number to the left by the specified number of digits and returns the shifted result, such as: a << ;n.
Right shift operator (>>): Shifts the binary representation of a number to the right by the specified number of digits and returns the shifted result, such as: a >> ;n.

5. Assignment operator:

Simple assignment operator (=): Change the value of the right operand Assign to the left operand, such as: a = b.
Additional assignment operator (=): Adds the left operand to the right operand and assigns the result to the left operand, such as: a = b.
Subtraction assignment operator (-=): Subtract the right operand from the left operand and assign the result to the left operand, such as: a -= b.
Multiplication assignment operator (*=): Multiply the left operand by the right operand and assign the result to the left operand, such as: a *= b.
Division assignment operator (/=): Divide the left operand by the right operand and assign the result to the left operand, such as: a /= b.
Remainder assignment operator (%=): Take the remainder of the left operand and the right operand, and assign the result to the left operand, such as: a %= b.
Integer division assignment operator (//=): divides the left operand into the right operand and assigns the result to the left operand, such as: a //= b.
Power assignment operator (**=): Assign the power of the left operand to the left operand, such as: a ** = b.
Bitwise AND assignment operator (&=): Perform a bitwise AND operation on the left operand and the right operand, and assign the result to the left operand, such as: a & = b.
Bitwise OR assignment operator (|=): performs a bitwise OR operation on the left operand and the right operand, and assigns the result to the left operand, such as: a |= b.
Bitwise XOR assignment operator (^=): Perform a bitwise XOR operation on the left operand and the right operand, and assign the result to the left operand, such as: a^=b.
Left shift assignment operator (<<=): Shifts the binary representation of the left operand to the left by the specified number of digits, and assigns the result to the left operand, such as :a <<= n.
Right shift assignment operator (>>=): Shifts the binary representation of the left operand to the right by the specified number of digits and assigns the result to the left operand, such as :a>>= n.

These are the common operators in Python and their usage. You can choose the appropriate operator to perform the corresponding operation according to your specific needs.

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