用来做数值计算作业的代码,来自Numerical Methods Using Matlab (4th Edition) [John H. Mathews, Kurtis K. Fink],改了一下注释,并添加输出消元过程的代码 uptrbk.m functionX =uptrbk(A, B) % initialization [N N]=size(A); X= zeros(N,1); C= zeros(1, N+1); % construct augmented matrix ...
The UpperTriangularSolver object solves UX = B for X when U is a square, upper-triangular matrix with the same number of rows as B.
Create a 6-by-6 lower triangular matrix. Get A = tril(magic(6)) A = 6×6 35 0 0 0 0 0 3 32 0 0 0 0 31 9 2 0 0 0 8 28 33 17 0 0 30 5 34 12 14 0 4 36 29 13 18 11 Find the lower bandwidth of A by specifying type as 'lower'. The result is 5 since ...
(QR decomposition) If A is an m× n matrix, it can be expressed in the form A = QR, where Q is an m× m orthogonal matrix and R is an m× n upper triangular matrix. Now let us do Example 17.1 again, this time using the Givens QR decomposition. Compare the results to those of...
upper-triangular NumericalLinearAlgebra ChrisRambicureGuojinChenChristopherCprek WHYUSELINEARALGEBRA?1)Becauseitisapplicableinmanyproblems….2)…Andit’susuallyeasierthancalculus TRUE “Linearalgebrahasbecomeasbasicandasapplicableascalculus,andfortunatelyitiseasier.”-GilbertStrang Calculus HERECOMETHEBASICS…SCALARS ...
Create a 6-by-6 lower triangular matrix. Get A = tril(magic(6)) A = 6×6 35 0 0 0 0 0 3 32 0 0 0 0 31 9 2 0 0 0 8 28 33 17 0 0 30 5 34 12 14 0 4 36 29 13 18 11 Find the lower bandwidth of A by specifying type as 'lower'. The result is 5 since ...
step System object:dsp.LUFactor Namespace:dsp Decompose matrix into lower and upper triangular matrices Syntax [LU,P] = step(lu,A) [LU,P,S] = step(lu,A) Description Note Starting in R2016b, instead of using thestepmethod to perform the operation defined by the System object™, you ...
example [lower,upper] = bandwidth(A)returns the lower bandwidth,lower, and upper bandwidth,upper, of matrixA. Examples collapse all Find Bandwidth of Triangular Matrix Create a 6-by-6 lower triangular matrix. A = tril(magic(6)) A =6×635 0 0 0 0 0 3 32 0 0 0 0 31 9 2 0 0...
The allowable velocity field can be determined using the triangular geometric relationship of the allowable velocity field. The absolute and relative velocity vectors of three types of rigid blocks are analyzed and solved, respectively: In Equations (9)–(33), the internal friction angle of the ...
The obtained point cloud was bounded and a triangular mesh surface was created in order to show the working volume. Figure 3. The working volume of the orthosis. The hand can comfortably reach the areas in front of the body, in front of the face, and up to the top of the head. It...