Z****e
发帖数: 6171 | 1 1. if A is a real symmetric matrix, prove that there is a real symmetric
matrix B such that B^3=A.
2. prove that every positive matrix is the square of a positive matrix.
多谢 实在不知道怎么做 |
d******e
发帖数: 7844 | 2 1.Real Symmetic matrix can be eigen value decomposition.
B's eigenvalues's cube are A's eigenvalues.
B. I've never heard of Positive matrix before. Do you mean positive definite
?/
【在 Z****e 的大作中提到】
: 1. if A is a real symmetric matrix, prove that there is a real symmetric
: matrix B such that B^3=A.
: 2. prove that every positive matrix is the square of a positive matrix.
: 多谢 实在不知道怎么做
|
Z****e
发帖数: 6171 | 3 题目里就是positive matrix 我理解是Nonnegative matrix
那要是positive definite 怎么做?
第一题 没有eigen value 怎么整？
definite
【在 d******e 的大作中提到】
: 1.Real Symmetic matrix can be eigen value decomposition.
: B's eigenvalues's cube are A's eigenvalues.
: B. I've never heard of Positive matrix before. Do you mean positive definite
: ?/
|
c*******h
发帖数: 1096 | 4 1. A 对角化
2. 2 1 不是任何正矩阵的平方
1 5
【在 Z****e 的大作中提到】
: 1. if A is a real symmetric matrix, prove that there is a real symmetric
: matrix B such that B^3=A.
: 2. prove that every positive matrix is the square of a positive matrix.
: 多谢 实在不知道怎么做
|
