Sometimes the smartest Excel move is closing Excel.

As of May 2026, the spreadsheet landscape for business and economics students has undergone a radical transformation, driven by the integration of advanced AI features like Microsoft’s Copilot and ...

Cycle detection in directed graphs, topological sort, Kahn’s algorithm. These are the ones that feel simple until you’re implementing them and something quietly goes wrong. Same idea as BFS: try to ...

Process a 2D matrix using nested loops. Outer loop iterates rows, inner loop iterates columns.

Abstract: This article proposes a simplified finite-set model predictive control (FS-MPC) algorithm for full-frequency operation of five-level nested neutral-point-clamped (5L-NNPC) inverters.

Abstract: The interconnected electrical power grids are operated by multilevel control centers with hierarchical architecture. Since large-scale renewables are integrated in different voltage levels, ...