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.
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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