Monday, January 27, 2020
Introduction to MATLAB
Introduction to MATLAB 3.1.1. What Is MATLAB? MATLABÃ ® is a high-performance language for technical computing. It integrates computation, visualization, and programming in an easy-to-use environment where problems and solutions are expressed in familiar mathematical notation. Typical uses include Math and computation Algorithm development Data acquisition Modeling, simulation, and prototyping Data analysis, exploration, and visualization Scientific and engineering graphics Application development, including graphical user interface building. MATLAB is an interactive system whose basic data element is an array that does not require dimensioning. This allows you to solve many technical computing problems, especially those with matrix and vector formulations, in a fraction of the time it would take to write a program in a scalar non interactive language such as C or FORTRAN. The name MATLAB stands for matrix laboratory. MATLAB was originally written to provide easy access to matrix software developed by the LINPACK and EISPACK projects. Today, MATLAB engines incorporate the LAPACK and BLAS libraries, embedding the state of the art in software for matrix computation. MATLAB has evolved over a period of years with input from many users. In university environments, it is the standard instructional tool for introductory and advanced courses in mathematics, engineering, and science. In industry, MATLAB is the tool of choice for high-productivity research, development, and analysis. MATLAB features a family of add-on application-specific solutions called toolboxes. Very important to most users of MATLAB, toolboxes allow you to learn and apply specialized technology. Toolboxes are comprehensive collections of MATLAB functions (M-files) that extend the MATLAB environment to solve particular classes of problems. Areas in which toolboxes are available include signal processing, control systems, neural networks, fuzzy logic, wavelets, simulation, and many others. 3.2: The MATLAB System The MATLAB system consists of five main parts: 3.2.1: Development Environment This is the set of tools and facilities that help you use MATLAB functions and files. Many of these tools are graphical user interfaces. It includes the MATLAB desktop and Command Window, a command history, an editor and debugger, and browsers for viewing help, the workspace, files, and the search path. 3.2.2: The MATLAB Mathematical Function This is a vast collection of computational algorithms ranging from elementary functions like sum, sine, cosine, and complex arithmetic, to more sophisticated functions like matrix inverse, matrix eigen values, Bessel functions, and fast Fourier transforms. 3.2.3: The MATLAB Language This is a high-level matrix/array language with control flow statements, functions, data structures, input/output, and object-oriented programming features. It allows both programming in the small to rapidly create quick and dirty throw-away programs, and programming in the large to create complete large and complex application programs. 3.2.4: Graphics MATLAB has extensive facilities for displaying vectors and matrices as graphs, as well as annotating and printing these graphs. It includes high-level functions for two-dimensional and three-dimensional data visualization, image processing, animation, and presentation graphics. It also includes low-level functions that allow you to fully customize the appearance of graphics as well as to build complete graphical user interfaces on your MATLAB applications. 3.2.5: The MATLAB Application Program Interface (API) This is a library that allows you to write C and FORTRAN programs that interact with MATLAB. It includes facilities for calling routines from MATLAB (dynamic linking), calling MATLAB as a computational engine, and for reading and writing MAT-files. 3.3: MATLAB Working Environment 3.3.1: MATLAB Desktop MATLAB Desktop is the main MATLAB application window. The desktop contains five sub windows, the command window, the workspace browser, the current directory window, the command history window, and one or more figure windows, which are shown only when the user displays a graphic. The command window is where the user types MATLAB commands and expressions at the prompt (>>) and where the output of those commands is displayed. MATLAB defines the workspace as the set of variables that the user creates in a work session. The workspace browser shows these variables and some information about them. Double clicking on a variable in the workspace browser launches the Array Editor, which can be used to obtain information and income instances edit certain properties of the variable. The current Directory tab above the workspace tab shows the contents of the current directory, whose path is shown in the current directory window. For example, in the windows operating system the path might be as follows: C:MATLABWork, indicating that directory work is a subdirectory of the main directory MATLAB; WHICH IS INSTALLED IN DRIVE C. clicking on the arrow in the current directory window shows a list of recently used paths. Clicking on the button to the right of the window allows the user to change the current directory. MATLAB uses a search path to find M-files and other MATLAB related files, which are organize in directories in the computer file system. Any file run in MATLAB must resides in the current directory or in a directory that is on search path. By default, the files supplied with MATLAB and math works toolboxes areincluded in the search path. The easiest way to see which directories is soon the search path, or to add or modify a search path is to select set path from the File menu the desktop, and then use the set path dialog box. It is good practice to add any commonly used directories to the search path to avoid repeatedly having the change the current directory. The Command History Window contains a record of the commands a user has entered in the command window, including both current and previous MATLAB sessions. Previously entered MATLAB commands can be selected and re-executed from the command history window by right clicking on a command or sequence of commands. This action launches a menu from which to select various options in addition to executing the commands. This is useful to select various options in addition to executing the commands. This is a useful feature when experimenting with various commands in a work session. 3.3.2: Using the MATLAB Editor to create M-Files The MATLAB editor is both a text editor specialized for creating M-files and a graphical MATLAB debugger. The editor can appear in a window by itself, or it can be a sub window in the desktop. M-files are denoted by the extension .m, as in pixel up. m. The MATLAB editor window has numerous pull-down menus for tasks such as saving, viewing, and debugging files. Because it performs some simple checks and also uses color to differentiate between various elements of code, this text editor is recommended as the tool of choice for writing and editing M-functions. To open the editor, type edit at the prompt opens the M-file filename. m in an editor window, ready for editing. As noted earlier, the file must be in the current directory, or in a directory in the search path. 3.3.3: Getting Help The principal way to get help online is to use the MATLAB help browser, opened as a separate window either by clicking on the question mark symbol (?) on the desktop toolbar, or by typing help browser at the prompt in the command window. The help Browser is a web browser integrated into the MATLAB desktop that displays a Hypertext Markup Language (HTML) documents. The Help Browser consists of two panes, the help navigator pane, used to find information, and the display pane, used to view the information. Self-explanatory tabs other than navigator pane are used to perform a search.
Sunday, January 19, 2020
The Great Depression Essay -- American History
The Causes of the Great Depression The cause of the Great Depression has been debated for many years. The actual cause of the Great Depression is a multitude of factors, there was no single cause. Several reasons for the Great Depression were supply and demand, the banking system, wages of workers, success and failure of business, government policy, excessive speculation in the stock market and the unequal distribution of wealth between the rich and the middle class. While there are many theories to what caused the Great Depression; all of these factors played a role in the Great Depression. The European nations industry had been devastated during the war and they relied on the United States for most goods. The American industry increased production during the war to meet the demand but over production after the war hurt the American industry and agriculture. The United States industry was producing more than the people were buying. The American farmers were faced with the same fundamental problems of over production (McElvaine 35). During the war in Europe the government encouraged a vast increase in agricultural production. During the war the government subsidized many of the farmers. The farmers borrowed heavily during the war to enlarge their farms to meet the demand. After the war the farmers did not slow production and they over produced (McElvaine 36). The United States imposed high tariffs on goods coming into the country but wanted to sell their good freely in Europe (James 103). Congress passed the Fordney-McCumber tariff of 1922 were they placed tarif fs on certain agricultural products which were seldom imported in large quantity to the United States. The tariff should have slowed the agricultur... ...epression can not be contributed to any single reason. There were a multitude of reasons for the collapse of the Stock Market. The Great Depression was felt worldwide. The American economy was the greatest during that time and many nations relied on us. Work Cited Brinkley, Allen. ââ¬Å"The Great Depressionâ⬠, American History: a survey, New York: McGraw Hill, p 666-685. Freedman, Russell. Children of the Great Depression. New York: Clarion Books, 2005 James, Harold. The End of Globalization: Lessons from the Great Depression. London, England: Harvard University Press, 2001. McElvaine, Robert S. The Great Depression. Toronto, Canada: Times Books, 1984. Smith, Gerald. Planning and the Tariff: An Essay on Philosophy, New Jersey: Princeton University Press, 1934. Temin, Peter. Monetary Forces Cause the Great Depression, New York: W.W. Norton, 1976.
Saturday, January 11, 2020
Ptlls Assignment 2
Summarise the key aspects of current legislative requirements and codes of practice relevant to your subject and the type of organisation within which you would like to work. In my future job I will be teaching basic literacy and numeracy skills using ICT. There are normally 15 students to a room sitting at a computer desk with headphones and a computer with keyboard. Basic health and safety is discussed at the induction session detailing emergency exits and the alarm that can be expected in the event of a fire.Ground rules are also discussed which state clearly that no food or drink is to be taken into the main classrooms and all mobile phones must be switched off. According to the Health and Safety at Work Act 1974, under the duties of employers: ââ¬ËAll working practices must be safe; The work environment must be safe and healthy; All plant and machinery must be kept to a minimum; Safety policies must be stated to all staff. The reasons behind these ground rules are explored fo r example, if drinks are taken into the training classroom they could become a hazard if they were spilt over a computer keyboard or over another learner.Mobile phones can be very disruptive if they go off in the training classroom as they will disturb the other learners who despite the earphones will be able to hear the ring tones. Minton (1991) also states that ââ¬ËAs a teacher your responsibility for the safety of your students is a legal requirementââ¬â¢. This legal requirement extends to the safeguarding from suspected abuse young people or vulnerable adults and the abuse covered is physical, sexual, emotional, bullying, discrimination and neglect, which all form a part of both the Sex Discrimination Act 1975 and the Race Relations Act 2006.Wherever people gather in groups they can be vulnerable to discrimination. The computer programmes themselves are published with copyright protection under the ââ¬ËData Protections Act 1998ââ¬â¢ and all programmes can only be run by learners enrolled on courses with appropriate passwords and registration. Copyright gives the creators certain kinds of material rights to control the ways in which their materials are used. These rights start as soon as the computer programme is accessed and the course is started. All learners are also protected under the Equal Opportunities Act 2006.Under this Act all people must be treated equally regardless of their differences both visible and non visible and treatment of all learners must be free from any kind of discrimination. There are a number of laws that promote equality and diversity and as teachers it is essential that we conform to all legislation to ensure the safety of our students. References Handout Notes Session 2 ââ¬â 1/10/10/ Health and Safety at Work Act 1974 Sex Discrimination Act 1975 Race Relations Act 1976 Disability Discrimination Act 2005 Data Protection Act 1988 Equal Opportunities Act 2006 Debra Clarke PTLLS Assignment 2
Friday, January 3, 2020
Literature And Fantasy Novels By Stephan King - 993 Words
Stephan King, an American author of horror, supernatural fiction and fantasy novels, shares his thoughts on writing and how to become a good writer in the article named ââ¬Å"On Writingâ⬠. According to him, the secret to being a good writer is in the writing and reading itself. Per Mr. King, one needs not only to write and read, but to enjoy doing it. As he wrote, there are no short cuts or easy ways to become a good writer without writing and reading a lot. Reading of books whether good or bad will help the future writer to find and develop his style. Per Mr. King the badly written books were of more help to him; reading them helped him to find out what mistakes not to make in his own writings. He wrote how reading a poor prose as Asteroid Miners showed him what not to do in his books. The author wrote that it is one of the first books he read and it was kind of an inspiration for him to start writing. King wrote, after he finished the book he said to himself ââ¬Å"I can do b etter of that.â⬠Even though the book was bad it was a very important part of his development as a writer. Mr. King concluded that reading is the key to success. He read seventy-eighty books per year; despite the fact he said he was a slow reader. Although his favorite genre is fiction, he read everything, horror, suspense, science fiction, and fantasy. As he wrote, he read for pleasure, not to study or analyze the writing. As long as it was a good story he is enjoyed it, and the learning process is inevitable.Show MoreRelatedOpenness in Personality10561 Words à |à 43 Pages2224/sbp.2000.28.1.1. 21. ^ a b c Sibley, Chris G.; Duckitt, John (2000). Personality and prejudice: a meta-analysis and theoretical review. Personality and Social Psychology Review 12: 248 - 279. doi:10.1177/1088868308319226. 22. ^ Stephan, Yannick (2009). Openness to experience and active older adults life satisfaction: A trait and facet-level analysis. Personality and Individual Differences 47 (6): 637ââ¬â641. doi:10.1016/j.paid.2009.05.025. 23. ^ Saroglou, Vassilis (2002).Read MoreEssay about Summary of History of Graphic Design by Meggs14945 Words à |à 60 Pagesreplaced the scroll, as it consisted of stacked pieces of paper much like a modern book. - Graphic symbols became a representation of religious belief during the Roman Empire. - Romeââ¬â¢s legacy includes architecture, engineering, language, law and literature. - Just as the invention of printing launched a quiet revolution in Chinese culture, alphabetic writing on papyrus slowly transformed Western society. - Alphabetic writing was spread by armies, traders and especially religious missionaries.
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