- recur += power(arg+p,-n+_ex_1());
- recur *= factorial(n)*power(_ex_1(),n);
- return (psi(n, arg+m+_ex1())-recur).series(rel, order, options);
+ recur += power(arg+p,-n+_ex_1);
+ recur *= factorial(n)*power(_ex_1,n);
+ return (psi(n, arg+m+_ex1)-recur).series(rel, order, options);