To use BESSELK in Excel, you need to enter the function into a cell. The function takes four arguments: the first is the order of the function, the second is the radius, the third is the x-coordinate, and the fourth is the y-coordinate. The function will return the value of the Bessel function of the first order at the given radius and coordinates.
To use the BESSELK function in Excel, you will need to enter the following into the formula bar:
=BESSELK(x,n)
Where x is the value at which you want to evaluate the function, and n is the order of the Bessel function.
A common application for the Bessel function is to calculate the vibration frequency of an object. The Bessel function can be used to calculate the vibration frequency of an object with a circular cross-section. The vibration frequency is calculated by using the Bessel function to calculate the first order Bessel function of the radius of the object. The vibration frequency is then calculated by taking the square root of the first order Bessel function of the radius of the object.
BESSELK should not be used in Excel when the function is not needed. The function can be slow and cumbersome, so it is best to use it when accuracy is key.
There are a few similar formulae to BESSELK in Excel. One is BESSELI, which is the inverse of BESSELK. BESSELJ is the Bessel function of the first kind, and BESSELY is the Bessel function of the second kind.