RadiationX Messages 255 Reaction score 0 Thread starter May 14, 2005 #1 In general, is it true that if a sequence has a limit that it converges and if it does not have a limit that it diverges?when i say have a limit i mean that the limit exists.
In general, is it true that if a sequence has a limit that it converges and if it does not have a limit that it diverges?when i say have a limit i mean that the limit exists.
Jameson Insights Author Gold Member MHB Messages 4,533 Reaction score 13 May 14, 2005 #2 Given [tex]\sum_{n=0}^{\infty} a_n[/tex] if the series converges, then [tex]\lim_{n\rightarrow\infty}a_n = 0[/tex] This does not mean that if the limit = 0 it converges, but that it has a possibility to converge. If the limit does not equal 0, the series diverges.
Given [tex]\sum_{n=0}^{\infty} a_n[/tex] if the series converges, then [tex]\lim_{n\rightarrow\infty}a_n = 0[/tex] This does not mean that if the limit = 0 it converges, but that it has a possibility to converge. If the limit does not equal 0, the series diverges.
James R Science Advisor Homework Helper Gold Member Messages 599 Reaction score 15 May 14, 2005 #3 Are you talking about sequences or series, RadiationX? By definition, if a sequence has a finite limit, then it converges to that limit.
Are you talking about sequences or series, RadiationX? By definition, if a sequence has a finite limit, then it converges to that limit.
HallsofIvy Science Advisor Homework Helper Messages 42,895 Reaction score 983 May 15, 2005 #5 Yes. "Converge" is DEFINED as "has a limit". "Diverge" is defined as "does not have a limit".