5 citations · 13 across the 12 of their papers we have counts for
4 papers · 1 filter
The -belos
Antonio M. Oller-Marcén
The \emph{arbelos} is the shape bounded by three mutually tangent semicircles with collinear diameters. Recently, Sondow introduced the parabolic analog, the \emph{parbelos} and pr…
Volumes of Solids of Revolution. A Unified Approach
Jorge Martín-Morales, Antonio M. Oller-Marcén
We present a method to compute the volume of a solid of revolution as a double integral in a very simple way. Then, we see that the classical methods (disks and shells) are recover…
A determinant of generalized Fibonacci numbers
Christian Krattenthaler, Antonio M. Oller-Marcén
We evaluate a determinant of generalized Fibonacci numbers, thus providing a common generalization of several determinant evaluation results that have previously appeared in the li…
On the last digit and the last non-zero digit of in base
José María Grau, Antonio M. Oller-Marcén
In this paper we study the sequences defined by the last and the last non-zero digits of in base . For the sequence given by the last digits of in base , we prove…