Aeneas Messages 26 Reaction score 0 Thread starter May 13, 2012 #1 If Un+1=Un + d defines an arithmetic progression, and Un+1 = kUn defines a geometric progression, is there a name for a progression defined by Un+1 =KUn + d? Thanks.
If Un+1=Un + d defines an arithmetic progression, and Un+1 = kUn defines a geometric progression, is there a name for a progression defined by Un+1 =KUn + d? Thanks.
tiny-tim Science Advisor Homework Helper Messages 25,837 Reaction score 258 May 13, 2012 #2 Hi Aeneas! We can rewrite that as Un+1 - d/(1 - K) =K(Un - d/(1 - k)) … geometric.