Newbetuts

How can you verify that a 3 by 3 unimodular matrix generates an infinite number of Fermat near misses?

How do you find (continuous) bounds on the matrix exponential

If $X^n$ is a diagonal matrix with distinct eigenvalues, then is $X$ also a diagonal matrix with distinct eigenvalues?

Number of elementary multiplications for multiplying 4x4 matrices

Find $\sum\limits_{k=0}^{n-1}\,\omega_n^{k^2\ell}$, where $\omega_n:=\exp\left(\frac{2\pi\text{i}}{n}\right)$.

Finding the dimension of a given vector space

Pedagogy of Teaching the Inverse Matrix Method

what does it mean for a matrix to be greater than another?

Maurer-Cartan 1-form

Finding the generators of a subgroup of $\mathrm{SL}_2(\mathbb Z)$

Could one make a ring of matrices of uncountable size?

Trace of Product of Powers of $A$ and $A^\ast$

Let $trcA=0$.why $A=M+N$ where $M$ and $N$ are nilpotent matrices?

Basis for Skew Symmetric Matrix

Eigenvalues of $MA$ versus eigenvalues of $A$ for orthogonal projection $M$

Necessary and sufficient conditions for left and right eigenvectors to be equal

New posts in matrices

Eigenvalues of large tridiagonal matrix

Can one factor matrices?

A determinant involving a polynomial is $0$

Can we show that the determinant of this matrix is non-zero?

How can you verify that a 3 by 3 unimodular matrix generates an infinite number of Fermat near misses?

How do you find (continuous) bounds on the matrix exponential

If $X^n$ is a diagonal matrix with distinct eigenvalues, then is $X$ also a diagonal matrix with distinct eigenvalues?

Number of elementary multiplications for multiplying 4x4 matrices

Find $\sum\limits_{k=0}^{n-1}\,\omega_n^{k^2\ell}$, where $\omega_n:=\exp\left(\frac{2\pi\text{i}}{n}\right)$.

Finding the dimension of a given vector space

Pedagogy of Teaching the Inverse Matrix Method

what does it mean for a matrix to be greater than another?

Maurer-Cartan 1-form

Finding the generators of a subgroup of $\mathrm{SL}_2(\mathbb Z)$

Could one make a ring of matrices of uncountable size?

Trace of Product of Powers of $A$ and $A^\ast$

Let $trcA=0$.why $A=M+N$ where $M$ and $N$ are nilpotent matrices?

Basis for Skew Symmetric Matrix

Eigenvalues of $MA$ versus eigenvalues of $A$ for orthogonal projection $M$

Necessary and sufficient conditions for left and right eigenvectors to be equal