Microsoft Office Tutorials and References

In Depth Information

**BESSELK**

The n-th order
BESSEL
function of the variable x is

where

is the GAMMA function.

Figure 5.2

The
BESSELJ
function

returns the actual

BESSEL
function.

BESSELK

The
BESSELK
function returns the
BESSEL
function in modified form for imaginar y arguments.

=BESSELK(x,n)

The
BESSELK
function is found only if the Analysis Toolpak is installed. In addition it must be

turned on in the Add-Ins from the Tools menu. Both X and N must be numeric and greater

than zero. Notice the example in Figure 5.3. Where the value is is 2 and the integer is 1, the

BESSELK
function results in 0.1399.

The value to evaluate the function.

X

The order of the
BESSEL
function. Truncated if not an integer.

N