Investopedia

Bond Floor Basics: What It Means and How to Calculate It

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
Scientific American

How to find pi in randomness all around you

Celebrate Pi Day and read all about how this number pops up across math and science on our special Pi Day page. Grab something circular, like a cup, measure the distance around the circle, and divide ...

Kappa in Options Trading: What It Is and How to Measure It

Kappa measures an option's sensitivity to changes in volatility, affecting its price. Learn its definition, how it works, and ...
IEEE

Phased Array Featuring Independent, Simultaneous Beamsteering for Widely Separated mmWave Dual-Band Using Compact, Low-Loss, Selective Coupler

Abstract: This article introduces a new concept of a phased array that can independently and simultaneously perform beamsteering across two frequency ranges: a lower band encompassing 24 GHz and a ...
IEEE

Far- and Near-Field Channel Measurements and Characterization in the Terahertz Band Using a Virtual Antenna Array

Abstract: Extremely large-scale antenna array (ELAA) technologies consisting of ultra-massive multiple-input-multiple-output (UM-MIMO) or reconfigurable intelligent surfaces (RISs), are emerging to ...