Bruno, You overlooked the question at the bottom of the page that I tried unsuccessfully to work out. Brent supplied the answer but what I was looking for were the steps that lead up to the answer. marty

----- Original Message ----- From: Bruno Marchal To: everything-list@googlegroups.com Sent: Friday, July 24, 2009 4:48 AM Subject: Re: Seven Step Series a^n * a^(-m) = a^(n-m) Again, verify this on simple example of your own. OK: If a=10 and n=3 and m=4 Following the formula above "a^n * a^(-m)" ,I get as the first half of the equation: 10^3 * 10/4 = 1000 x 2.5= 2500 but for the second half "a^(n-m) I get: 10^(n-m)= 10^ -1= 10/1 which of course makes no sense at all. Where did I go wrong? Bruno http://iridia.ulb.ac.be/~marchal/ http://iridia.ulb.ac.be/~marchal/ --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to everything-list@googlegroups.com To unsubscribe from this group, send email to everything-list+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/everything-list?hl=en -~----------~----~----~----~------~----~------~--~---