Sunday, 30 August 2015

Having trouble understanding Series and Sequences

So all I could get from my teachers thick accent in class today is that:



A sequence is finite and converges when bounded by x?



and



A series is infinite and diverges because no matter how small the function gets, it will never reach zero?



I'm sorry. I'm really having a hard time understanding the concept. For example. This picture... !

s1=a1s2=a1+a2s3=a1+a2+a3s4=a1+a2+a3+a4sn=a1+a2+a3+a4++an=ni=1ai



I don't the last part involving the sigma. How is that to the statments before it.

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