# Download A Concise Introduction to MATLAB by William Palm III PDF

By William Palm III

A Concise creation to Matlab is a straightforward, concise publication designed to hide the entire significant functions of MATLAB which are necessary for starting scholars. Thorough assurance of functionality handles, nameless features, and Subfunctions. furthermore, key purposes together with plotting, programming, information and version construction also are all coated. MATLAB is shortly a globally to be had average computational instrument for engineers and scientists. The terminology, syntax, and using the programming language are good outlined and the association of the fabric makes it effortless to find details and navigate in the course of the textbook.

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Example text

A(2:3,1:3) denotes all the elements in the second and third rows that are also in the first through third columns. v = A(:) creates a vector v consisting of all the columns of A stacked from first to last. A(end,:) denotes the last row in A. A(:,end) denotes the last column. You can use array indices to extract a smaller array from another array. 1–1) by typing >>B = [2,4,10,13;16,3,7,18;8,4,9,25;3,12,15,17]; and then type >>C = B(2:3,1:3); you can produce the following array: C = c 16 8 3 4 7 d 9 The empty array contains no elements and is expressed as [].

Note the difference between the results given by [a,b] and [a;b] in the following session: >>a = [1,3,5]; >>b = [7,9,11]; >>c = [a,b] c = 1 3 5 7 9 11 >> D = [a;b] D = 1 3 5 7 9 11 Matrices and the Transpose Operation The transpose operation interchanges the rows and columns. In mathematics text we denote this operation by the superscript T. For an m ϫ n matrix A with m rows and n columns, AT (read “A transpose”) is an n ϫ m matrix. A = c -2 -3 6 d 5 AT = c -2 6 -3 d 5 If AT ϭ A, the matrix A is symmetric.

4(y - 5) 3y 1 -1 a. a1 - 5 b b. 3␲x2 c. d. 4x - 8 3x - 6 x 4. Evaluate the following expressions in MATLAB for the given value of x. Check your answers by hand. 4 x a. y = 6x3 + , xϭ2 b. y = 3, xϭ8 x 4 (4x)2 sin x c. y = , x ϭ 10 d. y = 2 , xϭ2 25 5 e. 58, x ϭ 20 5. Assuming that the variables a, b, c, d, and f are scalars, write MATLAB statements to compute and display the following expressions. 83. b - a a c s = x = 1 + + 2 b d - c f 1 f2 1 y = ab r = 1 c 2 + 1 + 1 + 1 a 6. 2(55) - 93 3 45 a.