Copyright © 1999 Nomad Research, Inc.
This program can be used only for educational purposes.
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Calculation of Bessel Functions of the First Kind
to see a picture of Friedrich Wilhelm Bessel. To learn about Bessel click
Below is a form to enter the order and argument for a calculation of a
Bessel function of the first kind (Jn[x]). One version
is a Simpson integration of the trigonometric identity that defines
Jn(x), the other a recurrence relationship from
rational series approximations for J0(x) and
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