Modified Bessel function
= Modified Bessel function
The modified Bessel equation of order zero is
$$
z^2y''+zy'-z^2y=0.
$$
Its solution regular at zero and normalized by $I_0(0)=1$ is the modified Bessel function $I_0$.
= Modified Bessel function
The modified Bessel equation of order zero is
$$
z^2y''+zy'-z^2y=0.
$$
Its solution regular at zero and normalized by $I_0(0)=1$ is the modified Bessel function $I_0$.