To use batchlatex, you need to load batchtex.lisp: (C1) load("batchtex.lisp"); Loading batchtex.lisp Finished loading batchtex.lisp (D1) batchtex.lisp Place batchtex.lisp in a directory Maxima can find; Maxima's share directory should work. I added a sentence about loading batchtex.lisp to my documentation. Regards, Barton