Matrix arrangement fortune telling _ matrix arrangement algorithm

How to sort each row of matrix in matlab

Sort function is a sort function built in Matlab, which can meet the common sort requirements. The basic form of sorting function is as follows:

[Y，I]？ =? Sort (x, DIM, MODE) where:

Y stands for the result of sorting X.

I represents the original subscript of the corresponding element in y in x.

The default values of mode are Ascending in ascending order and Descending in descending order.

The default value of DIM is 1. If x is a matrix, the columns of the matrix are arranged in ascending order by default, that is, sort(X, 1) is equivalent to sort(X) (the matrix is stored by columns in matlab).

Sort(X, 2) means that the elements of each row in the matrix are arranged in ascending order.

If x is a row vector, then y and I are also row vectors; If x is a column vector, then y and I are also column vectors. If X is a matrix, then Y and I are matrices with the same dimension as X ...?

Sorting is reversible because the subscript information of the data in the original array is preserved. If [Y, I] = sort(X, DIM, MODE)X is the vector before sorting, y is the vector after sorting, and I is the subscript index, then X=Y(I) can restore the original vector.

MATLAB is a commercial mathematics software produced by MathWorks Company in the United States. It is an advanced technical computing language and interactive environment, which is used for algorithm development, data visualization, data analysis and numerical calculation. Mainly includes MATLAB and Simulink.

MATLAB is matrix &；; The combination of the word laboratory means matrix laboratory. It is a high-tech computing environment released by mathworks Company in the United States, which is mainly oriented to scientific computing, visualization and interactive programming. It integrates many powerful functions such as numerical analysis, matrix calculation, scientific data visualization, modeling and simulation of nonlinear dynamic systems in an easy-to-use window environment, and provides comprehensive solutions for scientific research, engineering design and many scientific fields that need effective numerical calculation, and to a great extent gets rid of the editing mode of traditional non-interactive programming languages (such as C and Fortran), which represents the advanced level of international scientific computing software.

MATLAB, Mathematica and Maple are also called the three major mathematical softwares. It is second to none in numerical calculation in mathematical science and technology application software. MATLAB can perform matrix operations, draw functions and data, realize algorithms, create user interfaces, and connect programs in other programming languages. Mainly used in engineering calculation, control design, signal processing and communication, image processing, signal detection, financial modeling design and analysis and other fields.

The basic data unit of MATLAB is matrix, and its instruction expression is very similar to that commonly used in mathematics and engineering. Therefore, it is much simpler to solve problems with MATLAB than to do the same thing with C, FORTRAN and other languages, and MATLAB also absorbs the advantages of Maple and other software, making MATLAB a powerful mathematical software. Support for C, FORTRAN, C++ and JAVA has also been added in the new version.