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Articles by karthikeya Boyini
Page 139 of 143
Introduction to Algorithms for Mathematical Problems
In this section we will see some common mathematical problems and their possible way solve using different computational algorithms. We will see how to solve differential equations, integrations and some other complex mathematical problems. In this Section We are going to cover − Convert Infix to Postfix Expression Convert Infix to Prefix Expression Evaluate Postfix Expression Secant method to solve non-linear equation Trapezoidal Rule for definite integral Simpson's 1/3 Rule for definite integral Linear Regression Lagrange Interpolation Runge-Kutta 4th order rule for differential equation Lucky Numbers Decimal to Binary conversion Find LCM of two numbers Find ...
Read MoreGenerate a graph using Dictionary in Python
The graphs can be implemented using Dictionary in Python. In the dictionary, each key will be the vertices, and as value, it holds a list of connected vertices. So the entire structure will look like Adjacency list of a graph G(V, E). We can use the basic dictionary object, but we are using default dict. It has some additional features. It has one additional writable instance variable. We are providing a text file, which contains the number of vertices, number of edges, names of vertices, and the list of edges. For undirected graph, we are providing two edges like ...
Read MoreFormatted text in Linux Terminal using Python
In this section, we will see how to print formatted texts in Linux terminal. By formatting, we can change the text color, style, and some special features. Linux terminal supports some ANSI escape sequences to control the formatting, color and other features. So we have to embed some bytes with the text. So when the terminal is trying to interpret them, those formatting will be effective. The general syntax of ANSI escape sequence is like below − \x1b[A;B;C A is the Text Formatting Style B is the Text Color or Foreground Color C is the Background ...
Read MoreHow to use XmlSerializer in C#?
Serialization/ De-serialization allow communication with another application by sending and receiving data. With XmlSerializer, you can control how objects are encoded into XML. To perform XML Serialization, you need the following two classes − StreamWriter class XmlSerializer class Call the Serialize method with the parameters of the StreamWriter and object to serialize. string myPath = "new.xml"; XmlSerializer s = new XmlSerializer(settings.GetType()); StreamWriter streamWriter = new StreamWriter(myPath); s.Serialize(streamWriter, settings); An XML file is visible with the name “new.xml”. Now to deserialize. MySettings mySettings = new MySettings(); string myPath = "new.xml"; XmlSerializer ...
Read MoreImproved Mobile Telephone System
Improved Mobile Telephone System (IMTS) was a radio system that linked to public switched telephone networks (PSTN) before the era of cellular mobiles. It was introduced in 1964 and was the wireless equivalent of landline dial up telephones. Features IMTS was a radio system for mobile telephones that was an improvement over the previous Mobile Telephone System (MTS). MTS supported half duplex communication. So, the communicating parties could not communicate simultaneously. IMTS supported full duplex communication, thus allowing both the user to talk and hear simultaneously. IMTS required a high power transmitter to be installed, preferably on the ...
Read MoreNetwork Interface Device
A network interface device (NID), also called network interface unit (NIU), is an interface between the network provider's local loop and the customer. These are present as grey boxes outside customer's premises, where the data wires of the phone company or the network provider ends and the customer's wiring begins. Diagrammatic Representation Features NID demarcates between provider's connection and customer's connection. Maintenance of wiring of the local loop up to the NID is the responsibility of the phone provider, while maintenance of wiring from the NID to the customer premises is the responsibility of the customer. NID protects ...
Read MoreSecond-Generation (2G) Mobile Phones
Second generation (2G) mobile phones switched from analog system of 1G to digital system. It was commercially launched in 1991 as GSM standard in Finland. As with 1G phones, 2G phones didn’t have any worldwide standardizations. 2G systems were also known as personal communications services (PCM). Advantages of 2G over 1G It allows voice signals to be digitized and compressed. So, they are more efficient on frequency spectrum than 1G. They introduced data services for mobile in form of SMS text messaging. Data and voice signals are digitally encrypted. So, security against eavesdropping and fraud increased manifold. Digital signals ...
Read MoreLocal Access and Transport Areas
In U.S. telecommunications,Local access and transport area (LATA) refers to a geographical area in the U.S. which is allocated to telephone companies. The telephone companies, legally termed as local exchange carriers (LECs) provide telecommunication services, within the allotted areas. A LATA may be within the same U.S. state or may span across more than one state, as laid down in Telecommunications Act of 1996. Two types of connections are possible. IntraLATA − It is a connection between two LECs within the LATA. InterLATA − It is a connection providing long-distance service between LECs in different LATAs.
Read MoreGlobal System for Mobile Communications
Global System for Mobile communication (GSM) is the most widely used digital mobile telephony system. GSM technology was first launched in Finland in 1991. It was developed by European Telecommunications Standards Institute (ETSI) to describe the protocols for 2G mobile communications.Presently, GSM comprises of approximately 90% of mobile connections worldwide. Features Original 2G standard was a digital, circuit-switched, full duplex network. GSM is part of the evolution of wireless mobile telecommunications including High-Speed Circuit-Switched Data (HSCSD), General Packet Radio Services (GPRS), Enhanced Data GSM Environment (EDGE), and Universal Mobile Telecommunications Service (UMTS). GSM operates at either 900 MHz ...
Read MoreBirthday Reminder Application in Python
In this section we will see how to create a birthday reminder application using Python. Problem Statement Create an application using Python, which can check whether there is any birthday on the current day or not. If it is the birthday of some listed person, send a notification to the System with the name of that person. We need a file, where we can store the date and month and the name of the person as a lookup file for this application. The file will look like this − Here we will convert this application to a start-up application ...
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