# How to Use Excel’s BESSELI Function

Using Microsoft Excel’s BESSELI function is not that hard if you know how to use it. Essentially, it can help you perform various financial and mathematical calculations in your Excel sheet. It will not be wrong to say that this function provides a complete solution to do linear independent mathematical equations. Using a variety of real world applications, Microsoft Excel’s BESSELI function is designed to solve complex heat reduction, head conduction and electromagnetism problems. If you want to use Excel’s BESSELI function then follow some simple techniques to help get you started.

### Instructions

• 1

Before doing anything else, you will need to make sure that you have the latest copy of Microsoft Excel installed on your computer. For those who do not have this facility, they can install the product directly from the DVD or navigate to the Microsoft Office website. Find the product and services page on the website and then download Office application. This application will cost some money so be prepared for that in advance.

• 2

Now find the Microsoft Office icon in the start up menu and run the Excel Application. A new window will appear. Next install the Analysis Toolpak if BESSELI comes back with the #Name? error value. Consider choosing the Add Ins menu product from the main menu. Select the field right next to the Analysis ToolPak. Find the Ok button and click it to start the installation process.

• 3

You will be required to study and learn the syntax for BESSELI. Remember the syntax which is BESSELI (n,x). For this function to work properly, the value of n must be greater than or equal to zero.

Where n is the order for the Bessel function and X is the value for the function

• 4

Next consider interpreting the error values which are often sent back by the function. #Name? error value usually means that one of the arguments is not a digit or number. If n is entered as less than zero, then the BESSELI will give the #NUM! Error.

• 5

Research this example of BESSELI: =BESSELI (1.9,2) will come back 0.33475626. This is the answer to the second-order Bessel operation of the first kind for 2.9. This outcome can be examined with the equations given in phase for n=2 and x = 2.9.

• 6

If you face any difficulties while try to use Excel's BESSELI function, then check online at some of the various websites or forums that specialises in Microsoft Excel. You can get expert advice from experienced users regarding different Excel functions.