(%i2) hgfred([1/2,1],[3/2],x^2); Is x zero or nonzero?zero; (%o2) atanh(x)/x (%i3) hgfred([1/2,1],[3/2],x^2); Is x zero or nonzero?nonzero; (%o3) log((x+1)/(1-x))/(2*x) Barton