Over the past three decades, fractional calculus has gained increasing importance and practical relevance in various fields of science and engineering. This article aims to develop enhanced ...

In our 36-country survey, we asked respondents how large a problem various types of inequality are in their nation, including the gap between the rich and the poor, unequal rights for men and women, ...

Carol M. Kopp edits features on a wide range of subjects for Investopedia, including investing, personal finance, retirement planning, taxes, business management, and career development. Robert Kelly ...