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Arithmetic Series Calculator

Calculator
Calculate the sum of the first \(k\) terms of an arithmetic progression.
\(a_{1}\) \(=\)
\(r\) \(=\)
\(k\) \(=\)
where:
  • \(a_{1}\) is the first term
  • \(r\) is the common difference expressed as a fraction
  • \(k\) is the index of the last term \(a_{k}\) to sum

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