hardmath

less info
meta site favicon meta user | stack exchange network profile network profile
7,084 reputation
11133
bio website uclue.com
location Knoxville, TN
age 60
visits member for 2 years, 6 months
seen 2 hours ago
stats profile views 870

Enjoys programming in Prolog. Will solve math problems for food.

Rosser's trick: "For every proof of me, there is a shorter proof of my negation".


224 Answers

newest activity votes
3
How to multiply vector 3 with 4by4 matrix, more precisely position * transformation matrix
3
Math behind the game “make $24$”
3
assignment of variables…only if we deal with a non-empty set
3
Field extension
3
Just a trivial doubt on linear algebra
3
Why are signed and complex measures typically not allowed to assume infinite values?
3
References with explanations of how works CORDIC algorithm for division
3
In neutral geometry, can a family of parallel lines leave holes in the plane?
3
Minimum number of subsets needed
2
A basic question on the definition of $E[X]$
2
A problem on calculating rank of a matrix
2
How to deduce the psition mapping of entries of a matrix?
2
Let $0 \ne u \in \mathbb{C}^n$ fixed and consider for every $v \in\mathbb{C}^n$ the matrix $E(v)=uv^*$. Give a polynomial $p$ such that $p(E)=0$.
2
Why multiplicative group $\mathbb{Z}_n^*$ is not cyclic for $n = 2^k$ and $k \ge 3$
2
Minimum ceiling height to move a closet to upright position
2
Which matrices $A$ have $f_{1} \neq 1$?
2
How to diagonalize this matrix?
2
Get location of vector/circle intersection?
2
Prove that two normed linear spaces are equivalent as metric spaces if and only if the norms are equivalent?
2
How would I express multiple intervals in this problem?
2
Matrix is singular to working precision
2
Fourier transform of a function is square integrable
2
If $X^n$ is a diagonal matrix with distinct eigenvalues, then is $X$ also a diagonal matrix with distinct eigenvalues?
2
diagonalization of a bisymmetric matrix
2
Is there a classic algorithm to find the shortest path between two points in a bidimentional space with polygon obstacles?
2
Table and dish rotation for monthly supper club
2
Linear trend has to pass through a point
2
Calculating the total number of surjective functions
2
Whether any even number can be written in the form of (n-1)A+B ( where A and B are primes)
2
Upper bound for the size of a maximal collection of subsets which, pairwise, have at most one common element
1 2 3 4 5 … 8