A tricky riddle involving shoes, burgers and a boy is going viral on Reddit, leaving many scratching their heads before one user cracked the code with the answer.

Abstract: The problem of solving linear equations is considered as one of the fundamental problems commonly encountered in science and engineering. In this article, the complex-valued time-varying ...

Abstract: The solving of nonlinear equation systems (e.g., complex transcendental dispersion equation systems in waveguide systems) is a fundamental topic in science and engineering. Davidenko method ...

In 2024, Gary, the father of a first grader was forced to ask Reddit for help with his son's homework, which asked students to fill in the missing word in a sentence.

py-pde is a Python package for solving partial differential equations (PDEs). The package provides classes for grids on which scalar and tensor fields can be defined. The associated differential ...