Python operators and it's types
Hey guys...
I know that in your mind will have a lot of questions, what is the operator's ?...
What is its type?...
This blog will only for information about operator and type!
In next blog I will give you knowledge about coding.
How to you operator in python?
Let starting new topic operators
Definition:-Operators are the constructs, which can manipulate the value of operands. Consider the expression 4 + 5 = 9. Here, 4 and 5 are called operands and + is called the operator.
- Types of Operator
Python language supports the following types of operators-
- Arithmetic Operators
- Comparison (Relational) Operators
- Assignment Operators
- Logical Operators
- Bitwise Operators
- Membership Operators
- Identity Operators
Let us have a look at all the operators one by one.
1.Python Arithmetic Operators
Assume variable a holds the value 10 and variable b holds the value 21, then-
+ Addition :-Adds values on either side of the operator. Example:-a + b = 31
- Subtraction :-Subtracts right hand operand from left hand operand.Example:-a – b = -11
* Multiplication:- Multiplies values on either side of the operator .Example:-a * b = 210
/ Division:- Divides left hand operand by right hand operand.Example:-b / a = 2.1
% Modulus:- Divides left hand operand by right hand operand and returns remainder. Example:-b % a = 1
** Exponent:- Performs exponential (power) calculation on operators. Example:-a**b =10 to the power 20
// Floor Division:-The division of operands where the result is the quotient in which the digits after the decimal point are removed.Example:-9//2 = 4 and 9.0//2.0 = 4.0
2.Python Comparison Operators
These operators compare the values on either side of them and decide the relation among them. They are also called Relational operators.
Assume variable a holds the value 10 and variable b holds the value 20, then-
==:-If the values of two operands are equal, then the condition becomes true.Example:-(a == b) is not true.
!=:-If values of two operands are not equal, then condition becomes true.Example:-(a!= b) is true.
>:-If the value of left operand is greater than the value of right operand, then condition becomes true.Example:-(a > b) is not true.
<:-If the value of left operand is less than the value of right operand, then condition becomes true.Example:-(a < b) is true.
>=:-If the value of left operand is greater than or equal to the value of right operand, then condition becomes true.Example:-(a >= b) is not true.
<=:-If the value of left operand is less than or equal to the value of right operand, then condition becomes true.Example:-(a <= b)is true.
3.Python Assignment Operators
Assume variable a holds 10 and variable b holds 20, then-
= :-Assigns values from right side operands to left side operand. Example:-c = a + b assigns value of a + b into c
+= Add AND:-It adds right operand to the left operand and assign the result to left operand. Example:-c += a is equivalent
to c = c + a
-= Subtract AND:-It subtracts right operand from the left operand and assign the result to left operand. Example:-c -= a is equivalent to c = c - a
*= Multiply AND:- It multiplies right operand with the left operand and assign the result to left operand. Example:-c *= a is equivalent to c = c * a
/= Divide AND:- It divides left operand with the right operand and assign the result to left operand. Example:-c /= a is equivalent
to c = c / ac /= a is equivalent to c = c /a
%= Modulus AND:- It takes modulus using two operands and assign the result to left operand. Example:-c %= a is equivalent to c = c % a
**= Exponent AND:- Performs exponential (power) calculation on operators and assign value to the left operand. Example:-c **= a is equivalent to c = c** a
//= Floor Division :- It performs floor division on operators and assign value to the left operand. Example:-c //= a is equivalent to c = c // a
4.Python Bitwise Operators
Bitwise operator works on bits and performs bit-by-bit operation. Assume if a = 60; and b = 13; Now in binary format they will be as follows-
a = 0011 1100
b = 0000 1101
-----------------
a&b = 0000 1100
a|b = 0011 1101
a^b = 0011 0001
~a = 1100 0011
Pyhton's built-in function bin() can be used to obtain binary representation of an integer number.
The following Bitwise operators are supported by Python language-
& Binary AND:- Operator copies a bit to the result, if it exists in both operands. Example:-(a & b) (means 00001100)
| Binary OR:- It copies a bit, if it exists in either operand. Example:-(a | b) = 61 (means 0011 1101)
^ Binary XOR:- It copies the bit, if it is set in one operand but not both. Example:-(a ^ b) = 49 (means 0011 0001)
~ Binary Ones Complement:- It is unary and has the effect of 'flipping' bits. Example:-( ~a ) = -61 (means 1100 0011 in 2's complement form due to a signed binary number.
<< Binary Left Shift:- The left operand’s value is moved left by the number of bits specified by the right operand. Example:-a << = 240 (means 1111 0000)
>> Binary Right Shift:- The left operand’s value is moved right by the number of bits specified by the right operand. Example:-a >> = 15 (means 0000 1111)
5.Python Logical Operators
The following logical operators are supported by Python language. Assume variable a holds True and variable b holds False then-
and Logical AND:- If both the operands are true then condition becomes true. Example:-(a and b) is False.
or Logical OR:- If any of the two operands are non-zero then condition becomes true. Example:-(a or b) Is True.
not Logical NOT:- Used to reverse the logical state of its operand. Example;-Not(a and b) is True.
6.Python Membership Operators
Python’s membership operators test for membership in a sequence, such as strings, lists, or tuples. There are two membership operators as explained below-
in:- Evaluates to true, if it finds a variable
in the specified sequence and false
otherwise. Example:-x in y, here in results in a 1 if x is a member of sequence y.
not in:- Evaluates to true, if it does not find a variable in the specified sequence and false otherwise. Example:-x not in y, here not in results in a 1 if x is not a member of sequence y.
7.Python Identity Operators
Identity operators compare the memory locations of two objects. There are two Identity Operators as explained below:
is:- Evaluates to true if the variables on
either side of the operator point to the
same object and false otherwise. Example:-x is y, here is results in 1 if id(x) equals id(y).
is not:- Evaluates to false if the variables on
either side of the operator point to the
same object and true otherwise. Example:-x is not y, here is not results in 1 if id(x) is not equal to id(y).
It is end for this blog.....
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