** Next:** More about k-subsets 10/9
** Up:** Enumeration Rules
** Previous:** Approximating n! 10/7

If some of you are unsure of your summing or calculus
knowledge, you can check your answers by using the symbolic
computation
facility in matlab, here are some simple examples:

k=sym('k');
%This tells the system to treat k as a symbol not a vector.
symsum(k^2) 1/3*k^3-1/2*k^2+1/6*k
symsum(1/k^2,1,Inf) 1/6*pi^2

You can also do Taylor expansions:

x=sym('x')
taylor(exp(-x))
1-x+1/2*x^2-1/6*x^3+1/24*x^4-1/120*x^5

*Susan Holmes*

*1998-12-07*