Abstract: Discrete fractional Fourier transform (DFRFT) is a generalization of discrete Fourier transform. There are a number of DFRFT proposals, which are useful for various signal processing ...

Can you chip in? As an independent nonprofit, the Internet Archive is fighting for universal access to quality information. We build and maintain all our own systems, but we don’t charge for access, ...

Abstract: For over 20 years, the data structures course has been a pillar of computer science programs at colleges and universities. This paper looks at how the data structures course has evolved over ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

When a woman permanently stops having menstrual periods, she has reached the stage of life called menopause. Often called the change of life, this stage signals the end of a woman's ability to have ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Thomas J. Brock is a CFA and CPA with more than 20 years of experience in various areas ...