... In addition to its primary research role, the Armagh Observatory has an important secondary responsibility (a) to maintain and preserve the fabric of the historic buildings, the library, historic books and archives, and the collection of scientific instruments and other artefacts built up over more than two hundred years of continuous astronomical activity in Armagh, and (b) to advance public understanding of science, and of astronomy in particular. ... 2004 Robinson Lectures, 25-26 November 2004 . ...

... 17.1 New features . ... Pure procedures . ... A function NULL to nullify a pointer . ... Complete version of END INTERFACE Pure functions are functions without side effects, and elemental functions are pure functions with only scalar arguments and with scalar result. ... Elemental functions are pure functions with only scalar dummy arguments (not pointers or procedures) and with scalar result (not pointer). That a function is elemental can be indicated with the new ELEMENTAL prefix. ...