Use the function 'ratdisrep.' (%i2) taylor(exp(x),x,0,2)$ (%i3) ratdisrep(%); (%o3) x^2/2+x+1 Barton -----maxima-bounces at math.utexas.edu wrote: ----- >How do I get the first 20 terms of a Taylor >series converted to a polynomial, so that I can find its roots? >