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Summation Calculator (Σ)

Evaluate sigma notation: sum an expression over a range of integers.

Expression f(i)

Start (i =)

End (i =)

Σ(i^2) for i=1 to 10385

Number of terms10

Sum385

Average term38.5

Terms (i = 1 to 10):

i = 11

i = 24

i = 39

i = 416

i = 525

i = 636

i = 749

i = 864

i = 981

i = 10100