# XExponentialPackage(R, VarSet, XPOLY)¶

This package provides computations of logarithms and exponentials for polynomials in non-commutative variables. Author: Michel Petitot (petitot@lifl.fr).
exp(p, n) returns the exponential of p truncated at order n.
Hausdorff(a, b, n) returns log(exp(a)*exp(b)) truncated at order n.
log(p, n) returns the logarithm of p truncated at order n.