Apr 26, 2012 12:20 BST Numerical Algorithms Group (NAG) The Numerical Algorithms Group (NAG) is delighted to announce its first collaboration of 2012 with the sponsorship of the Manchester Girl Geeks – a not-for-profit group based in Manchester UK which organises networking events, talks and hands-on workshops for women and girls with an interest in science, technology, engineering and mathematics (STEM).