What is the canonical Maxima way of obtaining the series form f(x) + hf'(x) + h^2f''(x)/2 + h^3f'''(x)/6 + ... for f(x+h)? Thanks, Alasdair -- Blog: http://amca01.wordpress.com Web: http://sites.google.com/site/amca01/ Facebook: http://www.facebook.com/alasdair.mcandrew