.BI series( expression ", " relation-or-symbol ", " order )
\- series expansion
.br
-.BI sqrfree( expression ", " symbol )
+.BI sqrfree( "expression [" ", " symbol-list] )
\- square-free factorization of a polynomial
.br
.BI sqrt( expression )
> Digits = 40;
40
> evalf(s);
-0.999999999999999999999995821133292704384960990679L0
+0.999999999999999999999995821133292704384960990679
> unassign('x');
x
> s;