EDITOR’S NOTE: This story was updated to reflect the person of interest detained Sunday was being released. Saying the “evidence now points in a different direction,” law enforcement officials late ...

Lisa Goetz is a finance content writer for Investopedia. She typically covers insurance, real estate, budgets and credit, and banking and taxes. Andy Smith is a Certified Financial Planner (CFP®), ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. An ordinary annuity is a series of equal payments made at the end of a time period for a ...

Abstract: Nowadays, conducting detailed numerical simulation of power electronic (PE) converters is time-consuming due to the iterative solution of nonlinear equations. While simplified numerical ...

Abstract: In this work, we investigate the exponential stability of the viscous Saint-Venant equations by adding to the standard hyperbolic Saint-Venant equations a viscosity term coming from the ...