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Arithmetic Series help

  • Thread starter CathyLou
  • Start date
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Please could someone tell me the way to find the smallest positive term of an arithmetic series (C1 level) as I cannot find a formula anywhere.

Thank you.

Cathy
 

cristo

Staff Emeritus
Science Advisor
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You could rearrange the formula [tex] S_n=\frac{n[2a_1+(n-1)d]}{2} [/tex], where n is the numbers of terms, Sn is the sum of the first n terms, d is the difference between the ith and (i+1)th term, and a1 is the first term of the series.
 
173
0
You could rearrange the formula [tex] S_n=\frac{n[2a_1+(n-1)d]}{2} [/tex], where n is the numbers of terms, Sn is the sum of the first n terms, d is the difference between the ith and (i+1)th term, and a1 is the first term of the series.
Okay. Thanks for your help.

Cathy
 

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