[sage-devel] Re: Bell Polynomials

2009-01-26 Thread Mike Hansen
On Mon, Jan 26, 2009 at 5:11 PM, bsdz wrote: > > Looks good to me except the note needs to be removed. > > Also would it be possible to update the formula to > > $B_{n,k}(x_1, x_2, \ldots, x_{n-k+1}) = \sum_{\sum{j_i}=k, \sum{i j_i} > =n} \frac{n!}{j_1!j_2!\ldots} \frac{x_1}{1!}^j_1 \frac{x_2}{2!

[sage-devel] Re: Bell Polynomials

2009-01-26 Thread bsdz
Looks good to me except the note needs to be removed. Also would it be possible to update the formula to $B_{n,k}(x_1, x_2, \ldots, x_{n-k+1}) = \sum_{\sum{j_i}=k, \sum{i j_i} =n} \frac{n!}{j_1!j_2!\ldots} \frac{x_1}{1!}^j_1 \frac{x_2}{2!}^j_2 \ldots$ Thanks On Jan 27, 12:14 am, Mike Hansen w

[sage-devel] Re: Bell Polynomials

2009-01-26 Thread Mike Hansen
Hi Blair, On Mon, Jan 26, 2009 at 3:36 PM, bsdz wrote: > Is there any where this could be added to the main distribution? I made a few modifications to your routine to match some of the style conventions used in Sage. Also, instead of passing in the variables, I'm creating a polynomial ring an