diimension

### Questions (58)

 109 Prove that simultaneously diagonalizable matrices commute 33 Inverse of a Positive Definite 15 If a Matrix Has Only Zero as an Eigen-Value Then It Is Nilpotent 6 Gram Matrices Rank [duplicate] 6 Prove that if $A$ is invertible matrix then $AA^T$ and $A^T A$ are also invertible.

### Reputation (3,050)

 +10 Gram Matrices Rank +30 Prove that simultaneously diagonalizable matrices commute +10 If a Matrix Has Only Zero as an Eigen-Value Then It Is Nilpotent +10 Inverse of a Positive Definite

 18 Too old to start math 3 Why is intersection of two independent set probability a multiplication process? 2 Equation of a plane given point and line 2 Help with $y'' + ay'+ by= h(x)$ and finding solutions. 2 Intersection line of planes

### Tags (22)

 8 linear-algebra × 62 2 regression 4 ordinary-differential-equations × 3 1 matrices × 8 3 calculus × 2 1 soft-question × 3 3 probability 1 learning × 2 2 geometry 1 combinatorics

### Bookmarks (28)

 235 Why study Algebraic Geometry? 190 Teaching myself differential topology and differential geometry 182 How to intuitively understand eigenvalue and eigenvector? 122 Why study linear algebra? 94 Importance of matrix rank