inverse这里指的是求这个3阶方阵的逆阵。具体方法就是初等变化，如果你会的话，方法如下：假设这个方阵是A，3阶的单位方阵为E，那么 A|E-->E|B。这里的B就是所求的逆阵。做法就是利用行初等变化把A变成E，同时用相同的行初等变化就把E变成了B。在理论上很好解释。这一系列的行变化就相当于B*...
I need to find the index of matrix A withe to have A=(:,1)=9 and A(:,2)=5.125 i try this 테마복사 [row,col]=find (A(:,1)==9 && A(:,2)=5.125) i need to have a sresult equal 27 댓글 수: 1 Mario Malic 2020년 11월 29일 See direction input ...
How to Find and Replace the Elements of a Matrix in MATLAB? When we deal with large matrices such as a matrix having a 1000-by-1000 size, it becomes very difficult to find and replace a value from that matrix. MATLAB provides us with a suitable solution to this problem. In MATLAB, we...
3 7 2.histctells us that its output is:"bincountsNumber of elements in each bin, returned as a vector or a matrix."The bins were determined by the input vector0:11, which means the first bin is0<=x<1, the second1<=x<2, etc, and|bincounts tel...
Math Algebra Matrices in mathematics How to find {eq}a^{10} {/eq} matrix when the matrix a is given?Question:How to find {eq}a^{10} {/eq} matrix when the matrix a is given?Higher Power of a Matrix:{eq}\\ {/eq} Suppose we have a matrix {eq}\text {A} {/eq} and we ...
In this example, we use theadjoint()function to find the adjoint of the given symbolic matrix in MATLAB. syms a b c d e f A = sym([1a2; b c d;e0f]); X = adjoint(A) Conclusion Manually computing theadjoint of a matrixhaving size n = 3 or above is a difficult and time-cons...
Hello All, I am Arjun a graduate student in Aerospace engineering. I have a doubt in assignment. I need to find the product of A+ matrix and A-matrix
Learn about factor analysis - a simple way to condense the data in many variables into a just a few variables.
Y''=6ax+2b 所以(6ax+2b)+(3ax^2+2bx+c)=2x^2+1 所以3a=2,6a+2b=0,2b+c=1 a=2/3,b=-2,c=4 故特解为Y=2/3x^3-2x^2+4x 原方程对应齐次方程的特征方程为r^2+r=0 r=-1或r=0 所以齐次方程的通解为y*=C1e^(-x)+C2 原方程的通解为y=C1e^(-x)+C2+2/3x^2-2x...
A. By guessing B. By doing some calculations C. By looking at the colors D. By counting the pages 相关知识点: 试题来源: 解析 B。解析:文中提到“For a very simple matrix like [1, 2; 3, 4], we can find its rank by doing some calculations.”。 反馈...