Technical Calculator

Summation Calculator

Calculate Sum Method:

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what's Summation?

In mathematics:

“Summation is the addition procedure of any numbers referred to as the summands or addends that bring about the sum or overall”

The collection is the series that defines the mathematical operation "+".

Summation components:

The simple sigma equation is as follows:

\(\sum_{n=1}^n x_i = x_1 + x_2 + x_3 + … + x_n\)

Where:

  • i = Lower bound
  • n = Upper bound

A way to Calculate a Summation?

Example:

when you have a given expression within the sigma notation under: \(\sum_{n=3}^7 x_{i}^3\) you can evaluate summation by expanding the sigma notation, which can be executed as follows:

Step # 1:

Write down the lower and upper limits

  • Lower limit = 3
  • Upper limit = 7

Step #02:

Now write the original function inside the summation notation

\(\sum_{n=3}^7 x_{i}^3 = x_{3}^3 + x_{4}^3 + x_{5}^3 + x_{6}^3 + x_{7}^3\)

Step # 3:

input the actual values

\(\sum_{n=3}^7 x_{i}^3 = 3^3 + 4^3 + 5^3 + 6^3 + 7^3\)

Step # 4:

Remedy to the maximum simple sigma notation

\(\sum_{n=3}^7 x_{i}^3 = 3^3 + 4^3 + 5^3 + 6^3 + 7^3\)

\(\sum_{n=3}^7 x_{i}^3 = 27 + 64 + 125 + 216 + 343\)

\(\sum_{n=3}^7 x_{i}^3 = 775\)

Sorts of Summation:

Summation is of sorts that encompass:

Easy collection Sum:

2+3+4+5+65+6+6=91

Description:

easy summation represents a easy mathematics sum of numbers.

Sigma Notation:

\(\sum_{i=0}^{n} [f\left(x\right)]\)

Description:

This method is extended to evaluate the very last sum. We should begin from the Index (lower limit) and terminate at the Endpoint (higher limit).

How Do I Do Double Summation?

  • First, change the order of expression for double sums
  • Now, the outside-sum index is preserving and increases the inner index
  • After using the internal sum index, increase the external sum index
  • Repeat the previous steps for the entire outside sum index