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

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

    Plots for modified Bessel functions of the first kind

    Modified 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 In(-x) = In(x) for even orders and In(-x) = -In(x) for odd orders.