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The matrix can be constructed using the above rules, and there are also some built-in functions in Matlab to construct specific matrices. For example, the ones() function is used to generate a matrix with all 1s, and the zeros() function is used to generate a matrix with all 0s. The ...
You can usefunmwith appropriate second arguments to find matrix exponential, logarithm, and square root. However, the more efficient approach is to use the functionsexpm,logm, andsqrtmfor this task. Create this square matrix and find its exponential, logarithm, and square root. ...
Scalar or vector function, specified as a symbolic expression, function, or vector. Iffis a scalar, then the Jacobian matrix offis the transposed gradient off. v—Vector of variables or functions with respect to which you compute Jacobian ...
If the input X is a matrix, Y=fft(X) returns the Fourier transform of each column of the matrix. If the input X is a multidimensional array, fft operates on the first nonsingleton dimension. Y = fft(X,n)returns the n-point DFT. fft(X) is equivalent to fft(X, n) where n is ...
flipdim-Flipmatrixalongspecifieddimension. rot90-Rotatematrix90degrees. :-Regularlyspacedvectorandindexintomatrix. find-Findindicesofnonzeroelements. end-Lastindex. sub2ind-Linearindexfrommultiplesubscripts. ind2sub-Multiplesubscriptsfromlinearindex. Multi-dimensionalarrayfunctions. ...
% a scalar, vector, or matrix. % % X = FMINCON(FUN,X0,A,B,Aeq,Beq) minimizes FUN subject to the linear % equalities Aeq*X = Beq as well as A*X <= B. (Set A=[] and B=[] if no % inequalities exist.) % % X = FMINCON(FUN,X0,A,B,Aeq,Beq,LB,UB) defines a set o...
说明 Y = inv(X)计算方阵X的逆矩阵。 X^(-1)等效于inv(X)。 x = A\b的计算方式与x = inv(A)*b不同,建议用于求解线性系统。 示例 示例 全部折叠 逆矩阵 计算一个 3×3 矩阵的逆矩阵。 X = [1 0 2; -1 5 0; 0 3 -9] X =3×31 0 2 -1 5 0 0 3 -9 ...
Find a matrixXthat satisfies X*X*X=[1234], starting at the pointx0 = [1,1;1,1]. Create an anonymous function that calculates the matrix equation and create the pointx0. Get fun = @(x)x*x*x - [1,2;3,4]; x0 = ones(2); ...
Input array, specified as a scalar, vector, matrix, or multidimensional array. Data Types: single | double Complex Number Support: Yes More About collapse all Exponential Integral The exponential integral of x is defined as By analytic continuation, expint is a scalar-valued function in the compl...