# Editorial Team ## Python Operators Examples

The python operators are used to evaluate expressions. An expression consists of values and operators which always evaluates to a single value. The python operators are classified in following types. Program 1: Write a program to demonstrate the working of python arithmetic operator. Solution: Solution: Program 2: Write a program to demonstrate the working of …

## Python Mutable And Immutable Type Examples

Some data types in python are mutable type which means you can make changes to them without changing the data type memory location, which immutable types do not allow changes to existing values in memory. Any change in variable value will be stored in a different location in memory. Here you will work on examples …

## Python Data Types Examples

Data types are fundamental to programming languages and they define the type of values get stored in a python variable. Here you will practice python data types which are similar to other programming languages, yet python don’t have strict type checking like C++, Java, etc. Strict type checking means the you need to declare the …

## Python Examples

Python is a high level language and you as a learner must practice a lot to master this programming language. Here we provide you examples to practice with solutions. You must install the python 3x compiler suitable for your computer and practice programming as you learn python. To learn the python language visit our Python …

## Python Variable Examples

This post contains python variable examples. You can start with first example and work your way through rest of the programs. For each program the solution is provided after the source code. You must try to write the program yourself and compare the results later. Program 1: Write a program to display the value of …

## Solving System Of Linear Equations Using Cramer’s Rule

Cramer’s rule is a method of solving the system of linear equations using determinants. It is named after Gabriel Cramer (1704–1752) who discovered this method. In this article we are going to discuss and work few examples for solving system of linear equations using Cramer’s rule. Before you start reading about Cramer’s rule, learn to …

So far you have learnt that square matrix has determinant value and larger the square matrix more difficult it is to compute the determinant through cross multiplication method. The larger matrix is usually broken down into smaller matrix and determinant or minors are calculated. Then assigning signs to these minors will give you cofactors to …

## Cofactors of Matrix

Previous article, you learned about minors of a square matrix which are determinant of smaller 2 x 2 matrix obtained by excluding row and column of a selected element from the original matrix. These minors are arranged in matrix form called matrix of minors. However, matrix of minors is not useful in finding the adjoint …

## Finding Matrix Of Minors

In the previous article, you have learned simple way of cross multiplication to obtain the determinant of a square matrix. As the size of matrix get larger and larger it is increasing difficult to compute the determinant because we must first select an element and then extract smaller matrix from the larger matrix and find …

## Finding Determinant By Cross Multiplication

In the previous article, we have seen how determinant decides whether a system of equation (read square matrix) has inverse, or it has a solution, only when the determinant is not zero. The determinant is obtained from the equation given below. To know more about finding determinant in this way , read previous article. Here …