![ LISTS
In python lists represents ‘coma’ separated values
between square brackets ‘[ ]’.
Example:
a[1,2,3,4,5,6,7,8,9]
a[1]=50](https://image.slidesharecdn.com/datatypesandoperators-181125100055/85/Data-types-and-operators-7-320.jpg)
Data types and operators
- 2. What is a data type? In computer science and computer programing a data type or simply type is a classification of data which tells the compiler or the interpreter how the programmer intends to use the data.
- 3. Python supports the following data types. NUMERIC STRING LISTS TUPLES DICTIONARIES
- 4. NUMERIC It includes only number which can be either integer or decimal. It is of two types: 1. Integer. 2. Float.
- 5. Integer: Python allows all the positive and negative numbers to be used with ‘int’ keyword. Float: It is used to specify fractional numbers with the keyword ‘float’.
- 6. STRING In python it is the collection of characters which is called string and it can hold any type of known characters like symbols, numbers, letters etc. Example: a=“hello” b=“how are you” print(a+b) o/p: hello how are you
- 7. LISTS In python lists represents ‘coma’ separated values between square brackets ‘[ ]’. Example: a[1,2,3,4,5,6,7,8,9] a[1]=50
- 8. TUPLES They are also list of values separated by ‘coma’ within parenthesis ‘( )’. Example: a(1,2,3,4,5,6,7,8,) a(1)=30
- 9. DICTIONARIES It is an ordered set of key : value pairs within flower bracket’{ }’. Example: a{1,2,3,4,5,6,7,8} a{1}=20
- 10. OPERATORS Python supports the following operators: 1. Arthematic operators. 2. Rational operators. 3. Logical operators.
- 11. ARTHMATIC OPERATORS It includes: +, -, /, %, *, //, ** . 1. /: For the division to get quotient. 2. %: For division to get remainder. 3. //: (Floor division) it is for division. But the fractional part is ignored. 4. **: It is for power calculation.
- 12. RELATIONAL OPERATORS represent ‘nIt includes: >, <, <=, >=, =, ==, !=. 1. = : It is for assigning the value with the variable. 2. == : It is to compare for exact matching. 3. != : Here,’!’ is to ot’. Example: a==5 If a=3 , a=5 (when we substitute) 3==5 (wrong) , 5==5(correct)
- 13. LOGICAL OPERATORS It includes ‘and’, ‘or’, ‘not’. 1. And: it is called logical ‘and’ which evaluates to true. If both the inputs are true other wise false. 2. Or: it is called logical ‘or’ and evaluates to true if any one of the input is true otherwise false A B A & B 0 0 0 0 1 0 1 0 0 1 1 1 A B A or B 0 0 0 0 1 1 1 0 1 1 1 1
- 14. 3. Not: It is called negation in which there is only one input and the output is true if input is false and vise versa. A ! A 0 1 1 0
- 15. IDENTITY OPERATORS In python ‘is’ and ‘is not’ are called identity operators ‘is’ will give the output as true if both the variable point to the same location, otherwise false. ‘is not’ will give the output as true if both the variables doesn't point to the same location/otherwise false.
- 16. THANK YOU -BY AMUKTHA MALYA AKHILA SATVI MANISHA DAMA