bit-question questions

• Scope of using namespace
• The meaning of **/* in the Ant script
• regarding the difference, intersection and union of two vectors
• Under R,regarding getting the list of the commands previously typed
• compiling issue related to slf4j library
• Analysis of a Perl autovivification example
• Given N points in a 3D space, how to find the smallest sphere that contains these N points?
• How to add minimize button for a userform?
• With respect to an array containing a lot of duplicate elements, is there any operations to improve the performance of normal binary search?
• Overflow issues when implementing math formulas

bit-question answers