SymPy is a Python library for symbolic mathematics. It aims to become a full-featured computer algebra system (CAS) while keeping the code as simple as possible in order to be comprehensible and easily extensible. SymPy is written entirely in Python. SymPy only depends on mpmath, a pure Python library for ... Read More

C# interface members can be implemented explicitly or implicitly.Implicit implementations don't include the name of the interface being implemented before the member name, so the compiler infers this. The members will be exposed as public and will be accessible when the object is cast as the concrete type.The call of ... Read More

Order by is used to sort the arrays in the ascending or in the descending orderGroupBy operator belong to Grouping Operators category. This operator takes a flat sequence of items, organize that sequence into groups (IGrouping) based on a specific key and return groups of sequenceExampleclass ElectronicGoods {    public ... Read More

Events enable a class or object to notify other classes or objects when something of interest occurs.The class that raises the event is called the publisher and the classes that handle the event are called subscribers.In the EventAn event can have multiple subscribers. A subscriber can handle multiple events from ... Read More

In Visual Studio Debug mode and Release mode are different configurations for building your .Net project.Select the Debug mode for debugging step by step their .Net project and select the Release mode for the final build of Assembly file (.dll or .exe).The Debug mode does not optimize the binary it ... Read More

Whenever we write a C# code and build or run the solution it generates 2 folders −binobjThese bins and obj has the compiled codeWhy do we have 2 folders?The reason is the compilation process goes through 2 stepscompilinglinkingIn the compiling every individual file is compiled into individual unitsThese compiled files ... Read More

IEnumerable exists in System.Collections Namespace.IQueryable exists in System. Linq Namespace.Both IEnumerable and IQueryable are forward collection.IEnumerable doesn’t support lazy loadingIQueryable support lazy loadingQuerying data from a database, IEnumerable execute a select query on the server side, load data in-memory on a client-side and then filter data.Querying data from a database, ... Read More

Converting an Object to a Binary format which is not in a human readable format is called Binary Serialization.Converting back the binary format to human readable format is called deserialization?To achieve binary serialization in C# we have to make use of library System.Runtime.Serialization.Formatters.Binary AssemblyCreate an object of BinaryFormatter class and ... Read More

A Globally Unique Identifier or GUID represents a gigantic identification number — a number so large that it is mathematically guaranteed to be unique not only in a single system like a database, but across multiple systems or distributed applications.The total number of unique keys (3.40282366×1038) is so large that ... Read More

In C#, Dictionary is a generic collection which is generally used to store key/value pairs. In Dictionary, the key cannot be null, but value can be. A key must be unique. Duplicate keys are not allowed if we try to use duplicate key then compiler will throw an exception.As mentioned ... Read More