Matlab functions

Bài giảng Lập trình Matlab cơ bản - Ths Võ Thiện Lĩnh gồm một số vấn đề cần tìm hiểu Giới thiệu Matlab, Cơ sở về Matlab, Function files và Script files, Đồ họa, Tạo giao diện trong Matlab, Simulink.

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MATLAB®, developed by The MathWorks, Inc., integrates computation, visualization, and programming in a flexible, open environment. It offers engineers, scientists, and mathematicians an intuitive language for expressing problems and their solutions mathematically and graphically. Complex numeric and symbolic problems can be solved in a fraction of the time required with a programming language such as C, Fortran, or Java.

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The main purpose in planning a third edition of this book was to upgrade it to cover the latest version of MATLAB (Version 7.2 Release 2006a). The other purpose was to maintain the objectives of the late Brian D. Hahn as stated in the prefaces of the first and second edition. In his prefaces to the first and second edition, he pointed out the following

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Kermit Sigmon, author of the MATLAB® Primer, passed away in January 1997. Kermit was a friend, colleague, and fellow avid bicyclist (although I’m a mere 10-mile-aday commuter) with whom I shared an appreciation for the contribution that MATLAB has made to the mathematics, engineering, and scientific community. MATLAB is a powerful tool, and my hope is that in revising our book for MATLAB 7.0, you will be able to learn how to apply it to solving your own challenging problems in mathematics, science, and engineering....

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Giới thiệu Matlab, cơ sở về Matlab, Function files và Script files, đồ họa, tạo giao diện trong Matlab, Simulink là những nội dung chính trong bài giảng "Lập trình matlab cơ bản". Mời các bạn cùng tham khảo nội dung bài giảng để nắm bắt nội dung chi tiết.

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Tham khảo sách 'matlab primer sixth edition', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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Basic elements of program Input – Initialize, define or assign numerical values to variables. Set of command expressions – Operations applied to input variables that lead to the desired result. Output – Display (graphically or numerically) result.An example of technical computinAn example of technical computing Let us consider using the hyperbolic tangent to model a downhill section of a snowboard or snow ski facility. Let us first examine the hyperbolic tangent function by executing the command: ezplot( ‘tanh(x)’ )...

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MATLAB is a numeric computation software for engineering and scientific calculations. MATLAB is increasingly being used by students, researchers, practicing engineers and technicians. The causes of MATLAB popularity are legion. Among them are its iterative mode of operation, built-in functions, simple programming, rich set of graphing facilities, possibilities for writing additional functions, and its extensive toolboxes.

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Theoretically the Kalman Filter is an estimator for what is called the linear-quadratic problem, which is the problem of estimating the instantaneous ``state'' (a concept that will be made more precise in the next chapter) of a linear dynamic system perturbed by white noiseÐby using measurements linearly related to the state but corrupted by white noise. The resulting estimator is statistically optimal with respect to any quadratic function of estimation error

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MATLAB® & Simulink® are the premier software packages for technical computation, data analysis, and visualization in education and industry. The Student Version of MATLAB & Simulink provides all of the features of professional MATLAB, with no limitations, and the full functionality of professional Simulink, with model sizes up to 300 blocks. The Student Version gives you immediate access to the high-performance numeric computing power you need.

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I am an admitted object-oriented fanatic. I have been designing and implementing object-oriented software for more than twenty years. When I started designing and implementing object-oriented MATLAB ® , I encountered many detractors. They would say things like “The object model isn’t complete,” “You can’t have public variables,” “The development environment doesn’t work well with objects,” “Objects and vector operations don’t mix,” “Object-oriented code is too hard to debug,” and “MATLAB objects are too slow.

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CHAPTER FOCUS Estimation Problem This is the problem of estimating the state of a linear stochastic system by using measurements that are linear functions of the state. We suppose that stochastic systems can be represented by the types of plant and measurement models (for continuous and discrete time) shown as Equations 4.1±4.5 in Table 4.1, with dimensions of the vector and matrix quantities as shown in Table 4.2.

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Linear estimators for discrete and continuous systems were derived in Chapter 4. The combination of functional linearity, quadratic performance criteria, and Gaussian statistics is essential to this development. The resulting optimal estimators are simple in form and powerful in effect. Many dynamic systems and sensors are not absolutely linear, but they are not far from it. Following the considerable success enjoyed by linear estimation methods on linear problems, extensions of these methods were applied to such nonlinear problems....

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Two of the most important functions for signal processing are not in the Signal Processing Toolbox at all, but are built-in MATLAB functions: • filter applies a digital filter to a data sequence. • fft calculates the discrete Fourier transform of a sequence. The operations these functions perform are the main computational workhorses of classical signal processing. Both are described in this chapter.

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Tài liệu tham khảo bài giảng Matlab - Tin học ứng dụng ( Nguyễn Bá Tuyên & Nguyễn Quang Chiến ) dành cho sinh viên chuyên ngành kỹ thuật biển gồm 7 chương và phần bài tập - Chương 5 SCRIPTS VÀ FUNCTIONS (M-FILES)

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Điểm 0 của hàm số là điểm (0,x), đây cũng chính là nghiệm của hàm số. Nếu hàm số có nhiều nghiệm thì sẽ tìm được nghiệm gần giá trị x0. fun: tên hàm số. Ví dụ: Tìm giá trị 0 của hàm số: x2-5x+3. Trước tiên ta khai báo hàm số f trong tập tin f.m: (xem thêm lệnh function) function y = f(x); y = x.^2-5*x+3; Sau đó, tạo tập tin gt0.m: x = 0:10; % Giá trị x0 = 0 z = fzero(‘f’,0); sprinf(‘z = %3f’,z) z = 0.382 % Giá trị x0 = 2 z = fzero(‘f’,2); sprintf(‘z = %.3f’,z) z = 2.

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MATLAB CANN BẢN I. BIỂU THỨC (EXPRESSION) Biến số ( variables) Số (Numbers) Toán tử ( Operaters) Hàm ( Functions) - tối đa 19 ký tự có nghĩa - phân biệt giữa chữ hoa và chữ thường. - bắt đầu bằng một từ theo sau là từ hay số hoặc dấu (_). - biến tòan cục (global) tác dụng trong tòan chương trình.

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MATLAB là một ngôn ngữ lập trình bậc cao với môi trường tương tác cho phép tính toán, xử lý đồ thị/hình ảnh, mô phỏng đơn giản với nhiều công cụ hỗ trợ sẵn có từ thư viện Tools và Functions. Trong nhiều trường hợp, do cho phép làm việc bằng các phép toán xây dựng cho mảng và ma trận nên MATLAB tỏ ra ưu thế hơn các ngôn ngữ truyền thống khác như C/C++ hay Java™.

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Most books that use MATLAB are aimed at readers who know how to program. This book is for people who have never programmed before. As a result, the order of presentation is unusual. The book starts with scalar values and works up to vectors and matrices very gradually. This approach is good for beginning programmers, because it is hard to understand composite objects until you understand basic programming semantics.

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Matlab is one of the most widely used computational tools in science and engineering. No matter what your background—be it physics, chemistry, math, or engineering—it would behoove you to at least learn the basics of this powerful tool.There are three good reasons to learn a computational mathematics tool.

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