Sigma (Summation) Calculator

Sigma (Sum) Calculator

Just type, and your answer comes up live. Example: n^2

n =

What is Sigma?

The symbol Σ (Sigma) means "sum up". It is used like this:

Calculation Steps

This calculator computes the sum by evaluating the expression for every integer value of n from the lower limit to the upper limit and then adding the results together.

All Functions

+, -, *, /, ^ sqrt(n), sin(n), cos(n), tan(n) abs(n), log(n), ln(n), exp(n)

Constants

π = 3.14159... e = 2.71828...

Why Use Sigma Notation?

Sigma notation is a compact and elegant way to represent long sums. It helps simplify mathematical expressions and is essential in calculus, statistics, and computer science.