Bessel functions often arise in advanced engineering analyses such as the study of electric fields. Here are some selected values for the zero-order Bessel function of the first kind
x | 1.8 | 2.0 | 2.2 | 2.4 | 2.6 |
J1(x) | 0.5815 | 0.5767 | 0.5560 | 0.5202 | 0.4708 |
Estimate J1(2.1) using third- and fourth-order interpolating polynomials. Determine the percent relative error for each case based on the true value, which can be determined with MATLAB’s built-in function besselj
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