Example:sz = [2 3 4]creates a 2-by-3-by-4 array. Data Types:double|single|int8|int16|int32|int64|uint8|uint16|uint32|uint64 Data type (class) to create, specified as"double","single","logical","int8","uint8","int16","uint16","int32","uint32","int64","uint64", or ...
Number of array elements collapse all in pageSyntax n = numel(A)Description n = numel(A) returns the number of elements, n, in array A, equivalent to prod(size(A)). exampleExamples collapse all Number of Elements in 3-D Matrix Copy Code Copy Command Create a 4-by-4-by-2 matrix. ...
Create an array of logical values. A = [true false; true true] A =2x2 logical array1 0 1 1 Find the product of the elements in each column. B = prod(A) B =1×21 0 The output has typedouble. class(B) ans = 'double'
assert(all(all(abs(K1-K2)<1e-12))) C = bsxfun(fun,A,B) appliesthe element-by-element binary operation specified by the functionhandlefun to arrays A and B,with singleton expansion enabled.fun can be oneof the following built-in functions: @plus Plus @minus Minus @times Array multiply...
在使用Matlab编写代码时,有时候会遇到 "Index out of bounds because numel(A)=5" 的错误提示。这个错误提示意味着在访问矩阵或向量时,超出了其大小范围。本篇博客将介绍一些常见的解决方案来解决这个问题。 1. 检查索引的范围 首先,需要检查代码中使用的索引是否超出了矩阵或向量的范围。例如,如果一个向量A的长度...
X = ones(sz1,...,szN) returns an sz1-by-...-by-szN array of ones where sz1,...,szN indicates the size of each dimension. For example, ones(2,3) returns a 2-by-3 array of ones. example X = ones(sz) returns an array of ones where the size vector, sz, defines size(X)...
% The possible values for FMT are contained in the file format% registry, which is accessed via the IMFORMATS command.%% If FILENAME is a TIFF, HDF, ICO, GIF, or CUR file containing more% than one image, INFO is a structure array with one element for...
a = zeros(2, 3),结果是一个 2×3 的全零矩阵 函数创建二维单位矩阵:,结果是一个 3×3 的单位矩阵 Array indexing(数组索引)是Matlab中对数组元素的访问和修改的常用操作。通过索引数组,我们可以精确地指定要操作的元素位置,方便进行数据的分析和计算。
This MATLAB function returns a logical array containing 1 (true) where the elements of the array A are Inf or -Inf, and 0 (false) where they are not.
(3) == Z % 单位矩阵右可消除 ans = 2×3 logical array 1 1 1 1 1 1 eye(2) * Z == Z % 单位矩阵左可消除 ans = 2×3 logical array 1 1 1 1 1 1 triu(Y) % 获取矩阵的上三角 upper triangular ans = 1 2 3 0 5 6 0 0 9 tril(Y) % 获取矩阵的下三角 lower triangular ...