Think back to middle school algebra, like 2 a + b. Those letters are parameters: Assign them values and you get a result. In ...

Cassidy was an updates editor whose main responsibility is to write and edit articles on a range of home improvement topics. Her passion for lifestyle writing began with her editorial apprenticeship ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Gordon Scott has been an active investor and technical analyst or 20+ years. He is a Chartered Market Technician ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...