用于创建零数组或矩阵的内置函数称为 zeros() 函数。为了简化任务,我们通常更喜欢这个内置函数,而不是手动创建一个零数组。以下部分包含创建零数组或矩阵的两种方法。 1。手动创建一个零数组 如果我们想创建一个零数组,我们可以简单地使用以下代码手动完成: 例子: Matlab实现 %MATLABCodeforcreate %an arrayofzeros ...
Z=zeros(m,n); Here,Zis the output array of sizem-by-nfilled with zeros. The function can also take additional arguments to create arrays with more than two dimensions. For example: Z=zeros(m,n,p,...); This creates a multidimensional array with dimensionsm,n,p, and so on, filled ...
X = zeros(2,3,4); %Create a 2-by-3-by-4 array of zeros. size(X) ans = 2 3 4 A = [14;25;36]; %Create an array of zeros that is the same size as an existing array. sz=size(A); X= zeros(sz) %X = zeros(size(A)); X = 0 0 0 0 0 0 X = zeros(1,3,'uint3...
%1.明确的分配内存:使用zeros函数clear data1, tic, data1 =zeros(1000,3000); toc %2.含蓄的分配内存:只对数组的最后一个元素赋值clear data1, tic, data1(1000,3000) =0; toc 说明:新版本的Matlab改变了zeros函数的分配机制,所以使用zeros的方法要比第二个方法快很多。 预分配一个非double类型的矩阵 ...
首先先列出matlab中help文件对zeros函数的解释:ZEROS Zeros array. ZEROS(N) is an N-by-N matrix of zeros. ZEROS(M,N) or ZEROS([M,N]) is an M-by-N matrix of zeros. ZEROS(M,N,P,...) or ZEROS([M N P ...]) is an M-by-N-by-P-by-... array of zeros. ZEROS(SIZE(A))...
%1.明确的分配内存:使用zeros函数 clear data1, tic, data1 = zeros(1000,3000); toc %2.含蓄的分配内存:只对数组的最后一个元素赋值 clear data1, tic, data1(1000,3000) = 0; toc 1. 2. 3. 4. 说明:新版本的Matlab改变了zeros函数的分配机制,所以使用zeros的方法要比第二个方法快很多。
zeros(m, n,...,classname) or zeros([m,n,...],classname) is an m-by-n-by-... array of zeros of data type classname.classname is a string specifying the data type of the output.classname can have the following values: 'double', 'single', 'int8', 'uint8', 'int16...
MATLAB Online에서 열기 Hello, I have the following code in which i want to fill the preallocated x with strings instead of number, i reason like this x = zeros(5,1); fork =1:length(x) x(k) = {'load'}; end x but i get this error >> Conversion to double from cell is...
% ZEROS(M,N,...,CLASSNAME) or ZEROS([M,N,...],CLASSNAME) is an % M-by-N-by-... array of zeros of class CLASSNAME. % % Note: The size inputs M, N, and P... should be nonnegative integers. % Negative integers are treated as 0. ...
zeros() 产生全0数组 random() 产生各种分布的随机数组 方阵(square matrix) 一般特指n*n的数组,其它与数组相同 行列式(determinant) 方阵的det值,一般用在解线性方程组中 向量(vector) 特指1*n或n*1的数组,前者称为行向量,后者称为列向量 Matlab中数组元素引用有三种方法: 下标法(subscripts) 索引法(index...