-----Fred Sullivan wrote: ----- >How do I compute a vector cross product? Either >the documentation is obscure or I'm obtuse. (%i1) load("vect")$ (%i2) [1,2,3]~[4,5,6]; (%o2) [1,2,3]~[4,5,6] (%i3) express(%); (%o3) [-3,6,-3] Barton