(identity matrix 乘法单位矩阵I) 括号里是几就是几阶的方阵:主对角线是1,其它都是0.zeros(2,3)% 2行3列的全0矩阵ones(2,3)% 2行3列的全1矩阵diag([234])% (diagonal matrix 对角矩阵) 指定主对角线元素,其它地方都是0linspace(-5,5)% linear spaced vectors(-5到5之间返回100个均匀间隔点组成的...
比如V＝[1 2 3 4 5 6 7 8]想得到M＝[1 2 3 4 5 6 7 8]可以这样：m=reshape（v，4,2），m=m.
2-Norm of Matrix clc clear close all % Calculate the 2-norm of a matrix, which is the largest singular value. X = [2 0 1;-1 1 0;-3 3 0]; n = norm(X) % n = 4.7234 1. 2. 3. 4. 5. 6. 7. 8. 9. Frobenius Norm of Sparse Matrix clc clear close all % 使用'fro'计...
matrix是array的分支，很多情况下matrix和array都是通用的
x=-6*pi:0.01:6*pi;y=-6*pi:0.01:6*pi;///这里加一句 [x,y] = meshgrid(x,y)/// m=length(x);n=length(y);[m,n]=size(z);z=sin(sqrt(x.^2+y.^2))./(x.^2+y.^2);surf(x,y,z)；
I would like to use themodel commandto execute my simulink model. The problem is that my inputs are scalars, vectors and matrices. But according to the reference, the input u should be a vector of doubles containing all the inputs. But I can't put scalars, vectors and matrices in one...
我猜你的代码应该是 surf(Xp(i),Yp(i),Zp(i)) 出错了吧，当x和y为1*10的向量时，则构成了一个10*10的二维平面，因此此时z应该是一个10*10的矩阵，而不是标量或矢量，错误提示：Z must be a matrix, not a scalar or vector 就是这个意思。
这段程序把第一行表达式左侧的两个X变成小写，就可以正常运行。[x1,x2]=meshgrid(0:0.001:0.005,0:0.001:0.006);Z=0.7572+sqrt(0.022+(40.55*x1).^2+(42.53*x2).^2);mesh(X1,X2,Z);xlabel('自变量x1'),ylabel('自变量x2'),zlabel('函数值f(x1,x2)');结果为：
Error in 'test2/Interpreted MATLAB Function'. Evaluation of expression resulted in an invalid output. Only finite double vector or matrix outputs are supported Edit: It crashes in second iteration What am i doing wrong? Thanks for help1
Why do you want the complexity of a cell array when you have only one character per cell and a character array would work just fine?