Microsoft Office Tutorials and References
In Depth Information
BESSELI
BESSELI
The BESSELI function returns the BESSEL function in modified form for imaginar y arguments.
=BESSELI(x,n)
The BESSELI 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 5.1. Where the value is 2 and the integer is 1, the
BESSELI function results in 1.5906.
The value to evaluate the function.
X
The order of the BESSEL function. Truncated if not an integer.
N
The n-th order modified BESSEL function of the variable x is
Figure 5.1
The BESSELI function
returns the modified
BESSEL function for
imaginary arguments.
BESSELJ
This BESSELJ function returns the actual BESSEL function. X is the value of at which to
evaluate the function. Y is the order of the BESSEL function.
=BESSELJ(x,n)
The BESSELJ 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 5.2. Where the value is is 2 and the integer is 1, the
BESSELJ function results in 0.5767.
The value to evaluate the function.
X
The order of the BESSEL function. Truncated if not an integer.
N
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