After 32 years of waiting, mathematicians calculate Dedekind's ninth number, a 42-digit giant that defied logic.
Abstract. We give an explicit relation between the Nevanlinna counting function of an analytic self-map of the unit disk and its pull-back measure. This gives a simple proof of the results of Lefévre, ...
How-To Geek on MSN
Don't trust Excel's COUNTA function to count non-blank cells—here's a better method
In most counting scenarios in Excel, COUNTBLANK reliably counts blank cells, and COUNTA reliably counts populated cells.
Excel has over 475 formulas in its Functions Library, from simple mathematics to very complex statistical, logical, and engineering tasks such as IF statements (one of our perennial favorite stories); ...
A set is called a unique range set for a certain class of functions if each inverse image of that set uniquely determines a function from the given class. We show that a finite set is a unique range ...
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