Abstract: In this correspondence, we establish that for odd n, the maximum nonlinearity achievable by an n-variable symmetric Boolean function is 2/sup n-1/-2/sup (n-1)///sup 2/ and characterize the ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. A Social Security number (SSN) is a numerical ID for U.S. citizens and residents to track ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

In most counting scenarios in Excel, COUNTBLANK reliably counts blank cells, and COUNTA reliably counts populated cells. However, with these functions comes a problematic paradox: an empty string from ...

Kelly-Ann Franklin has spent more than two decades in journalism which has helped her build a wide knowledge base of business and personal finance topics. Her goal with editing is to ensure tough ...

Have you ever had a moment when you’re walking home from a great night at a party where you met someone you really like. You’re thinking about them and what could come from the spark. In the midst of ...

Whenever you look at a clock, do you always see the same time? It might be 11:11 or 3:33. Maybe repeating numbers have made their way into other aspects of your life, such as a receipt that totaled ...

Abstract: The problem of counting all inequivalent monotone Boolean functions of nine variables is considered. We solve the problem using known algorithms and deriving new ones when necessary. We ...

Do you ever seem to see repeating sequences of numbers over and over again, like 222 or 333? Or have you heard that seeing 11:11 on the clock is a lucky sign to make a wish? It definitely feels like a ...

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

In the early 1970s mathematician Donald Knuth spent a sabbatical with his wife in Norway. The time was meant to be spent relaxing. Yet one night he woke up his partner in a state of agitation. He ...