Array in Python Python does not have in-built array. However, in C/C++ and Java you have learnt array and have expectation that it would be in Python. Further, array also a very important data structure and needs in several applications and algorithm implementations. In Python, there are two ways to create an array. In this […]
Dictionary in Python Dictionary in Python is collection of unordered items. Python provide in-built support for dictionary. Unlike, other in-built data structures in which they have single value such list, tuple and set. Python uses key value pair and separated by a colon i.e key:value, and value can be accessed by key. Keys are separated
Dictionary in Python Read More »
Tuples in Python Tuples in Python are ordered collection of items(integer, float, string) which are immutable. The only difference from list you can notice that a tuple in Python is immutable. Further, it uses parenthesis to create a tuple. However, tuples can also be created without parenthesis separated by comma. Now open terminal or jupyter
Decision making is fundamental in making a program. All programming languages provide in-built structure for it and Python is not exception. In this post, I will explain decision making using if else statements. Syntax if expression: Example of expressions x > 4 x < 4 x == 4 In Python you will write if
Decision Making in Python Read More »
Sets in Python Set is an unordered collection of unique elements. Items in sets are immutable which can not be replaced or changed. Elements of a set can not be accessed using indexing or a set can not be sliced. Creation of a Set in Python There are two methods to create a set in
Variable Declaration and Definition in Python Unlike C/C++ and Java, Python uses dynamic typed variables. What does it mean? To know answer of the question see the variable declaration in C. int x; It means you declare a variable x then compiler allocates memory and assigns a garbage value to x. You can initialize
Variable Declaration and Definition in Python Read More »
List in Python List in Python is a very powerful data structure which can store any type of data which is supported by Python. It is created using square bracket for example l=[2,4,5.2,’post’,’network’,10] this statement creates a list object of class list, and indexes objects as l[0], l[1], l[2], l[3], l[4] and l[5]. If you
Sets Set is a collection of well-defined objects. Set’s Representation Basically, there are two ways of a set representation. Types of Set 1-Null Set A set is called null set if it is empty or it does not have any elements and it is denoted by fi. 2-Singelton Set A set is called singleton if
Sets and Relations Read More »
Quadratic Form in Linear Algebra An expression is called quadratic form in the variables x1, x2, x3,………….,xn over field F. Where aij i=1,2,3,….n, j=1,2,3,….m are elements of F. If aij are real then quadratic form is called real quadratic form. Examples of Quadratic Form 1-x12+x22+ 6 x1 x2 is a quadratic form in variables x1
Quadratic Form in Linear Algebra Read More »
To understand test for convergence of a series you have to understand sequence and series and related concepts. Sequence A sequence S is a function whose domain is natural numbers and range is real numbers. i.e S: N->R. It is common practice to write a sequence S as Sn Examples of Sequences- Sn = <2n+1>
Test for Convergence of Series Read More »