A mind-boggling optical illusion has turned an abandoned mill in Canada into an unlikely Internet sensation and a local tourism attraction that “leaves people in awe”. The structure by Gravelly Bay in ...

On one hand, the quasi-Newton method can replace the first-order optimal condition to solve the extremum problem of the convex quadratic function, without involving matrix inverse.

Recently, in order to find the principal moments of inertia of a large number of rigid bodies, it was necessary to compute the eigenvalues of many real, symmetric 3 × 3 matrices. The available ...

Inverse design performance is assessed using varFDTD simulation of the optimized patterns on a test-set of 1000 Haar random unitary transmission matrix targets.

Given a sparse matrix A, we define and discuss a matrix B that approximates A–1, has exactly the same sparsity structure as A, and varies contravariantly with A. Unlike many other sparse inverse ...

If you have hundreds of film negatives cluttering up your drawers, your smartphone could be the key to digitizing them on a budget.

A matrix multiplied with its inverse gives the identity matrix. This function finds the inverse of a 2x2 and 3x3 matrix. If the determinant of a matrix is 0, its inverse does not exist.