Square Array of Ones Copy Code Copy Command Create a 4-by-4 array of ones. Get X = ones(4) X = 4×4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3-D Array of Ones Copy Code Copy Command Create a 2-by-3-by-4 array of ones. Get X = ones(2,3,4); size(X) ans...
X = ones returns the scalar 1. X = ones(n) returns an n-by-n matrix of ones. example 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....
I need to create an array with ones inside an ellipse and zeros outside it. The matrix has dimensions of NxM = 91x361. This matrix will be plotted polarly and the ellipse must be completely contained within the matrix. 댓글 수: 1 ...
Ones function is used to get a scalar or a vector with all ‘ones’ (1s) as its elements Matlab ones is used to improving code performance by pre-allocating the space required for the input array. We can use ones function in its different forms to get the order of the matrix as per ...
第二种方法②I=ones(8,5); q=reshape(49:56,8,1); I(:,1)=q; I(:,2)='.'; I(:,3)='b'; I(:,4)='m'; I(:,5)='p'; L=setstr(I); %将ASCII码转为字符串; 第三种方法③ images= [ ]; for i= 1:M str= strcat ('D: \MATLAB\work\', int2str(i) , ’.bmp’) ;...
ones() 产生全1数组 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(su...
To build block arrays by forming the tensor product of the input with an array of ones, usekron. For example, to stack the row vectorA = 1:3four times vertically, you can useB = kron(A,ones(4,1)). To create block arrays and perform a binary operation in a single pass, usebsxfun...
ones(4,3) MATLAB将执行上述语句并返回以下结果 - ans = 1 1 1 1 1 1 1 1 1 1 1 1 eye()函数创建一个单位矩阵。 例如- eye(4) MATLAB将执行上述语句并返回以下结果 - ans = 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 rand()函数在(0,1)上创建一个均匀分布的随机数数组 - ...
若不预先配置矩阵,程式仍可执行,但此时MATLAB需要动态地增加(或减小)矩阵的大小,因而降低程式的执行效率。所以在使用一个矩阵时,若能在事前知道其大小,则最好先使用zeros或ones等命令来预先配置所需的记忆体(即矩阵)大小。 在下例中,for 圈列出先前产生的Hilbert矩阵的...
value of a: 13 value of a: 14 value of a: 15 value of a: 16 value of a: 17 value of a: 18 value of a: 19 value of a: 20 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 在MATLAB 中 while循环的语法是: while <expression> ...