Hi, I wonder if tools exist in Debian to perform symbolic maths, in particular derivation, integration and simplification of functions. If there should be several packages, which ones to choose ? Thanks in advance, Marc Baaden -- Dr. Marc Baaden - Institut de Biologie Physico-Chimique, Paris mailto:baaden@smplinux.de - http://www.baaden.ibpc.fr FAX: +33 15841 5026 - Tel: +33 15841 5176 ou +33 609 843217