How to Do Summation on a TI-84 Calculator

The TI-84 is a powerful graphing calculator that can perform a wide variety of mathematical operations, including summation.
Summation is a mathematical operation that finds the sum of a series of numbers.
This guide will show you how to use the TI-84 to calculate the sum of a series of numbers.

Step 1: Enter the Series of Numbers

Press the “STAT” button.
Select “Edit” and then “1:Edit”.
Enter the series of numbers into the list. For example, to find the sum of the numbers 1, 2, 3, 4, and 5, enter the following into the list: 1,2,3,4,5.

Step 2: Calculate the Sum

Press the “2nd” button.
Press the “LIST” button.
Select “sum(
Enter the name of the list that contains the numbers. For example, if the numbers are stored in the list “L1”, enter L1.
Press the “)” key.

Step 3: View the Result

The sum of the numbers will be displayed on the screen.

Example

Let’s say we want to find the sum of the numbers 1, 2, 3, 4, and 5 using the TI-84.
We would follow these steps:

Press the “STAT” button.
Select “Edit” and then “1:Edit”.
Enter the following numbers into the list: 1,2,3,4,5.
Press the “2nd” button.
Press the “LIST” button.
Select “sum(
Enter “L1”.
Press the “)” key.

The sum of the numbers will be displayed on the screen, which is 15.

Conclusion

This guide has shown you how to use a TI-84 calculator to calculate the sum of a series of numbers. This is a simple and straightforward operation that can be used to solve a variety of mathematical problems.

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