Create a 3-by-3 matrix. Index the first row. Get A = magic(3) A = 3×3 8 1 6 3 5 7 4 9 2 Get A(1,:) ans = 1×3 8 1 6 Index the second and third column. Get A(:,2:3) ans = 3×2 1 6 5 7 9 2 Reshape the matrix into a column vector. Get A(...
An inversion of the elements is not equal to the inverse of the matrix, which is instead writtenA^-1orinv(A). Row Vector to Power of Column Vector Copy CodeCopy Command Create a 1-by-2 row vector and a 3-by-1 column vector and raise the row vector to the power of the column ve...
Create a column vector of strings. Then create a row vector. str1 = ["A";"B";"C"] str1 =3×1 string"A" "B" "C" str2 = ["1""2""3""4"] str2 =1×4 string"1" "2" "3" "4" Combinestr1andstr2. str = append(str1,str2) ...
Calculate the Frobenius norm of a 4-D arrayX, which is equivalent to the 2-norm of the column vectorX(:). X = rand(3,4,4,3); n = norm(X,"fro") n = 7.1247 The Frobenius norm is also useful for sparse matrices becausenorm(X,2)does not support sparseX. ...
If A is a row or column vector, C is the scalar-valued variance. For two-vector or two-matrix input, C is the 2-by-2 covariance matrix between the two random variables. The variances are along the diagonal of C.More About collapse all Covariance For two random variable vectors A and...
Another way to create a matrix is to use a function, such asones(),zeros(),orrand(). For example, create a 5-by-1 column vector of zeros. z = zeros(5,1) Matrix and Array Operation MATLAb allows you to process all of the values in a matrix using a single arithmetic operator or...
thefollowing signals:• Uniform function: “s=ones(1,64);”• Delta function: “s = ((1:64)= =1);”[NB: “1:64” generates the vector (1 2 … 64) ].• Sine wave: “s = sin(((1:64)-1)*2*pi*w/100)” for various values of w.Why do we need to use “(1:64)...
Get acquainted with operating on row and column vectors.Perform,for instance: •Create a vector consisting of the even numbers between 21 and 47. •Let x=[4596]. –Subtract 3 from each element. –Add 11 to the odd-index elements. ...
Create the box plots. boxplot(x,g)Input Arguments collapse all x— Input data numeric vector | numeric matrix Input data, specified as a numeric vector or numeric matrix. If x is a vector, boxplot plots one box. If x is a matrix, boxplot plots one box for each column of x. On ...
方法很简单，代码表示如下：Test_Vector=[1,2,3,4,5,6,7,8,9]Size_Test_Vector=size(Test_Vector);Test_Vector_Column=Size_Test_Vector(2);Test_Matrix=[ ];for i=[1:3:Test_Vector_Column]Test_Matrix_Change=Test_Vector(i:i+2);Test_Matrix=[Test_Matrix;Test_Matrix_Change];enddisplay(Test_...