题目57. If A is the adjacency matrix of a digraph G, what does the (i, j) entry of AAT represent if i ≠ j? 相关知识点: 试题来源: 解析 答案:见解析 解析:(AA)计算了邻近顶点;和顶点) 的顶点个数 知识点:邻接矩阵 反馈 收藏
What is the determinant of a diagonal matrix? What is the determinant of an orthogonal matrix? What does the determinant of a matrix mean? What is the determinant of a unitary matrix? What is a determinant in math? What is the determinant of a matrix with a single entry of 2?
The minor of an entry in a matrix is multiplied by a positive or negative sign, depending on the entry's position in the matrix, to determine the...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a questi...
The first principle minor d1 is just the upper left entry of the matrix. The second d2 is the determinant of the upper left 2 by 2 submatrix of the matrix.And so forth. (So when n = 3, d3 is the determinant of the entire matrix) 在您的每个关键点上评估此粗麻布。 然后得出的矩阵...
To multiply a matrix by a scalar, multiply each entry of the matrix by the scalar's value. For instance, given a matrix M and the scalar −1, the scalar product −1M will multiply each entry in M by −1, so each entry in −1M will have the opposite sign of each entry in...
The prime tuples conjecture does not directly say much about the value of ; however, it can be used to control differences for and not too large. Indeed, it is a famous calculation of Gallagher that for fixed , and chosen randomly from to , the quantity is distributed according to the ...
Hamilton’s quaternion number system is a non-commutative extension of the complex numbers, consisting of numbers of the form where are real numbers, and are anti-commuting square roots of with , , . While they are non-commutative, they do keep many other properties of the complex numbers: ...
Thus comparing corresponding elements we get, for the first entry of the given matrices r + 4 = 5. Therefore r = 1. Hence, option A is correct. Question 3: Give a simple definition of matrix? Answer: A matrix refers to a collection of numbers such that their arrangement is into a ...
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If the name of the matrix is M (respectively, A , X , etc.), the entry at the ( i , j )th position is usually denoted m i j (respectively, a i j , x i j ). An entry can be anything provided it gives the reader information. Here is a the real-life example.Serre, Denis...