The big headlines on this release are efficiency, with OpenAI reporting that GPT-5.4 uses far fewer tokens (47% fewer on some tasks) than its predecessors).

Prevent broken formulas using tables, validation rules, separate worksheets, named variables, and the power of LAMBDA.

Abstract: In this paper, a new isolated bidirectional single-input multiple-output (SIMO) converter, which enables both directions of power conversion between one DC port and multiple AC ports, is ...

Abstract: This paper presents a novel output-feedback direct adaptive controller with a decoupling design to completely attenuate periodic disturbances in the linear multi-input multi-output (MIMO) ...