Computer programming may seem like magic these days, but most programs are built from conceptual steps that use visual aids to work out how the program needs to flow. Each function of a program can be ...

This lively journal is produced five times per year and includes contributions from mathematics practitioners. It reflects the best of current thinking and practice. In addition to articles covering ...

News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only Fig. 6. Case 1 estimation error of the ...