This Simple Excel Trick Makes Dynamic Filters Update Themselves in Seconds

Learn how DROP, REDUCE, LAMBDA, and STACK make Excel arrays update automatically, split text, and stack filtered results ...
IEEE

A Multivariate Control Chart for Monitoring Several Exponential Quality Characteristics Using EWMA

Abstract: In this paper, we propose a new multivariate control chart for monitoring several exponential distributed characteristics. We transform each exponential variable into the one following an ...
IEEE

Exponential Synchronization of Chaotic Lur’e Systems Using Sampled-Data Proportional-Integral Controller and its Application on Chua’s Circuits

Abstract: This paper uses a proportional-integral (PI) controller to achieve the exponential synchronization of chaotic Lur’e systems under aperiodic sampled-data control. First of all, in order to ...
Daily Mail

Easy math sum proves painful as people struggle to solve elementary school question - do you know the answer?

For many, it's been years since they've sat in a classroom while a teacher tested their arithmetic skills. Internet users are now racking their brains to remember how to solve elementary school ...