Sum of series
Σk or Σk² for k = 1…n.
Calculator
How to use
Sums
Positive integer n.
Educational use only. For assessments, show reasoning and check boundary cases.
Σk or Σk² for k = 1…n.
Positive integer n.
Educational use only. For assessments, show reasoning and check boundary cases.
Model / formula
Σk or Σk²
Result
1+2+…+n = 5050.000000