Computation of Jn(x) by Numerical Integration It is shown to be practical to compute Jn(x) by numerical integration of its integral representation using the trapezoidal rule. The error in this approximation was studied empirically. CACM April, 1969 Stroud, A. H. Kohli, J. P. Bessel Function, numerical integration, trapezoidal rule 5.11 5.12 5.16 CA690408 JB February 17, 1978 4:13 PM 1909 4 1909 1909 4 1909 1909 4 1909 1909 4 1909 2119 4 1909 134 5 1909 1023 5 1909 1284 5 1909 1316 5 1909 1909 5 1909 1909 5 1909 1909 5 1909