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Active and Passive Electronic Components
Volume 22 (1999), Issue 2, Pages 75-85

Trigonometric Approximations for Some Bessel Functions

King Fahd University of Petroleum and Minerals, Box 203, Dhahran 31261, Saudi Arabia

Copyright © 1999 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Formulas are obtained for approximating the tabulated Bessel functions Jn(x), n = 0–9 in terms of trigonometric functions. These formulas can be easily integrated and differentiated and are convenient for personal computers and pocket calculators.