Translations:Documentation/Calc Functions/BESSELJ/17/en

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    The following figure shows a plot of the Bessel functions of the first kind for orders 0, 1, 2, and 3.

    Plots for Bessel functions of the first kind

    Bessel functions of the first kind are finite at the origin, x = 0. They exhibit odd or even parity depending on the order of the function, so that Jn(-x) = Jn(x) for even orders and Jn(-x) = -Jn(x) for odd orders.