This paper is a reprint of the original work by A. P. Calderón published by the Brazilian Mathematical Society (SBM) in ATAS of SBM (Rio de Janeiro), pp. 65-73, 1980. The original paper had no ...

This extensive library hosts sets of math problems suitable for students PreK-12. The resources span multiple topics and members have access to the over 1,000 problems and supporting materials! Share ...

Clustering is an unsupervised learning technique widely used in the field of data mining and analysis. Clustering encompasses many specific methods, among which the K-means algorithm maintains the ...