Scientific American

How to Identify a Prime Number without a Computer

For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...
Everyday Health

What Is Healthspan, and How Can You Extend Yours?

Lifespan means how long you live. Healthspan means how long you live actively, independently, and well. Here are seven ways ...
Investopedia

Growth Rates: Definition, Formula, and How to Calculate

James Chen, CMT is an expert trader, investment adviser, and global market strategist. David Kindness is a Certified Public Accountant (CPA) and an expert in the fields of financial accounting, ...
The New York Times

Want to Know What You’ll Pay for College? There’s a Fast New Calculator for That.

Nearly two dozen private colleges are offering an online tool that factors in need-based grants and scholarships to estimate students’ actual costs. By Ann Carrns High school seniors applying to ...
Investopedia

Adjusted Cost Basis: How to Calculate Additions and Deductions

Melissa Horton is a financial literacy professional. She has 10+ years of experience in the financial services and planning industry. Ebony Howard is a certified public accountant and a QuickBooks ...
IEEE

Chi-square and SPRT combined fault detection for multisensor navigation

Abstract: A fault-detection algorithm for a redundant multisensor navigation system for hypersonic cruise vehicles (HCVs) is proposed. The algorithm comprehensively diagnoses failures according to the ...