OPERATOR IN PYTHON-PART1

OPERATOR IN PYTHON-PART1

• 1.
  PYTHON CLASS: XI COMPUTER SCIENCE(083) OPERATORSIN PYTHON PART-1
• 2.
  OPERATORS: The operator canbe defined as a symbol which is responsible for a particular operation between two operands. Operators are used to perform operations on variables and values. The operator can be defined as a symbol which is responsible for a particular operation between two operands. Operators are used to perform operations on variables and values. Arithmetic operators Comparison operators Assignment Operators Logical Operators Membership Operators Identity Operators Types of Operators
• 3.
  Arithmetic Operators Arithmetic operatorsare used with numeric values to perform common mathematical operations: Operator Name Example + Addition x + y - Subtraction x - y * Multiplication x * y / Division x / y // Floor division[Integer Division] x // y ** Exponentiation x ** y % Modulus x % y
• 4.
  Arithmetic Operators + Additionx + y Example 1: A=10 B=20 C=A+B print(“A+B=“,C) --Output--- A+B=30 Example 2: A=10 B=20 --Output--- A+B=30 print(“A+B=“,A+B) Example 3: A=int(input(“Enter value A:”)) print(“A+B=“,C) B=int(input(“Enter value B:”)) C=A+B --Output--- Enter value A: 5 Enter value B: 4 A+B=9
• 5.
  Arithmetic Operators Example 1: A=20 B=10 C=A-B print(“A-B=“,C) --Output--- A-B=10 Example2: A=30 B=20 --Output--- A-B=10 print(“A-B=“,A-B) Example 3: A=int(input(“Enter value A:”)) print(“A-B=“,C) B=int(input(“Enter value B:”)) C=A-B --Output--- Enter value A: 5 Enter value B: 4 A-B=1 - Subtraction x - y
• 6.
  Arithmetic Operators Example 1: A=2 B=10 C=A*B print(“A*B=“,C) --Output--- A*B=20 Example2: A=3 B=2 --Output--- A*B=6 print(“A*B=“,A*B) Example 3: A=int(input(“Enter value A:”)) print(“A*B=“,C) B=int(input(“Enter value B:”)) C=A*B --Output--- Enter value A: 5 Enter value B: 4 A*B=20 * Multiplication x * y
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  Arithmetic Operators Example 1: A=27 B=5 C=A/B print(“A/B=“,C) --Output--- A/B=5.4 Example2: A=27 B=5 --Output--- A//B=5 / [Division] x / y // Floor division[Integer Division] x // y C=A//B print(“A//B=“,C)
• 8.
  Arithmetic Operators Example 1: A=27 B=5 C=A%B print(“A%B=“,C) --Output--- A%B=2 Example2: A=int(input(“Enter the value of A:”)) --Output--- Enter the value of A: 4 Enter the value of B: 2 A%B=0 % [Modulus] x % y : It return remainder value C=A%B print(“A%B=“,C) B=int(input(“Enter the value of B:”))
• 9.
  Arithmetic Operators Example 1: A=2 B=3 C=A**B print(“A**B=“,C) --Output--- A**B=8 Example2: A=int(input(Enter the value of A”)) B=int(input(“Enter the power”)) --Output--- Enter the value of A: 7 Enter the power: 2 A**B=49 C=A**B print(“A**B=“,C) ** Exponentiation x ** y Meaning of A**B AB
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  Precedence of ArithmeticOperators Highest Lowest () parentheses ** (Exponentiation) /(division) // (integer division) * ( multiply) % (modulas) + (addition) - ( subtraction)
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  Expressions: An expression isa combination of variable and operators. It generates a single value, which by itself is an expression. Example: 5 + 2 * 4 and the result is 13 Q. Convert the Mathematical Expressions to equivalent python expressions Algebraic Expression Python Programming Expression 5A 5 * A 4ab 4 * a * b A2 + B2 A**2 + B **2 a=(x+y)/(x-y)
• 12.
  20 + 30* 40 Evaluate the expressions: 1 2 20 + 120 140 20 - 30 + 40 1 2 -10 + 40 30 The two operators (–) and (+) have equal precedence. Thus, the first operator, i.e., subtraction is applied before the second operator, i.e., addition (left to right).
• 13.
  Evaluate the expressions: 12+ 3 * 4 – 6/2 1 3 4 12 + 12 – 6/2 12 + 12 – 3.0 2 24– 3.0 21.0 (12 + 3) * 4 – 6//2 1 2 4 3 15 * 4 – 6//2 60 – 6//2 60 – 3 57
• 14.
  + ( plus)and (*) sign for string + ( plus) : It is use to concatenation of string and in string case + (plus) sign is known as concatenation operator. Example: If there are two variable A=‘WELCOME’ and B=‘PYTHON’ and we want to join these two strings. A=‘WELCOME’ B=‘PYTHON’ print(A+B) ---Output---- WELCOMEPYTHON It display join or concatenation of two string but without any gap
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  + ( plus)and (*) sign for string * (multiply) : It is use to repeat the string as many times we need by multiplying the string with number given. Example: If variable A=‘WELCOME’ and we want to display WELCOME 3 times A=‘WELCOME’ print(A*3) ---Output---- WELCOMEWELCOMEWELCOME